diff --git a/editor/include/editor.hpp b/editor/include/editor.hpp
index 0820057..e054478 100755
--- a/editor/include/editor.hpp
+++ b/editor/include/editor.hpp
@@ -1,15 +1,17 @@
 #ifndef EDITOR_HPP
 #define EDITOR_HPP
 
-#include <X11/X.h>
 #include <open_engine.hpp>
 
 #include "open_engine/renderer/renderer3d.hpp"
 #include "open_engine/scene/components.hpp"
-#include "open_engine/scene/scene_serializer.hpp"
 #include "panels/content_browser.hpp"
 #include "panels/scene_hierarchy.hpp"
 
+#include <Jolt/Physics/Collision/Shape/Shape.h>
+#include <Jolt/Math/Real.h>
+#include <Jolt/Math/Vec3.h>
+#include <Jolt/Physics/Body/BodyCreationSettings.h>
 #include <glm/ext/matrix_transform.hpp>
 #include <glm/gtc/type_ptr.hpp>
 #include <glm/matrix.hpp>
@@ -92,33 +94,39 @@ namespace OpenEngine {
 
                 editor_camera = EditorCamera(30.0f, 1920.0f/1080.0f, 0.1f, 1000.0f);
 
+                // TODO: Add license
                 icons["play"] = Texture2D::Create("resources/textures/icons/play.png");
                 icons["stop"] = Texture2D::Create("resources/textures/icons/stop.png");
 
+                // =============================================
                 Entity cube = scene->CreateEntity("cube");
 
-
-                cube.AddComponent<TransformComponent>();
+                auto& tc = cube.AddComponent<TransformComponent>();
 
                 Ref<Mesh> mesh = CreateCube(cube);
 
-                cube.AddComponent<MeshComponent>(mesh);
+                auto& mc = cube.AddComponent<MeshComponent>(mesh);
+                mc.primitive_type = PrimitiveType::Cube;
 
+                // =============================================
                 Entity quad = scene->CreateEntity("quad");
                 quad.AddComponent<TransformComponent>();
                 quad.GetComponents<TransformComponent>().translation = {0, 0, 0};
 
                 Ref<Mesh> quad_mesh = CreateQuad(quad, true);
 
-                quad.AddComponent<MeshComponent>(quad_mesh);
+                auto& mc3 = quad.AddComponent<MeshComponent>(quad_mesh);
+                mc3.primitive_type = PrimitiveType::Quad;
 
+                // =============================================
                 Entity cube2 = scene->CreateEntity("cube2");
                 cube2.AddComponent<TransformComponent>();
                 cube2.GetComponents<TransformComponent>().translation = {2, 0, 0};
 
                 Ref<Mesh> mesh2 = CreateCube(cube2);
 
-                cube2.AddComponent<MeshComponent>(mesh2);
+                auto& mc2 = cube2.AddComponent<MeshComponent>(mesh2);
+                mc2.primitive_type = PrimitiveType::Cube;
 
                 /*
                 auto view = scene->GetRegistry().view<TagComponent>();
@@ -129,7 +137,6 @@ namespace OpenEngine {
                 }
                 */
 
-                // TODO: Add file texture. Get free icons and add license
                 //icons["folder"] = Texture2D::Create("resources/textures/icons/folder.png");
                 /*
                 for (float i = 0; i < 200; i++) {
@@ -179,7 +186,6 @@ namespace OpenEngine {
                 RenderCommand::Clear();
                 framebuffer->ClearBufferI(1, -1);
 
-
                 switch (state) {
                     case PlayState::Play: {
                         scene->OnUpdateRuntime();
@@ -206,6 +212,7 @@ namespace OpenEngine {
                 static bool clicked = false;
                 // Mouse Picking
                 if (Input::IsMouseButtonPressed(MouseCode::ButtonLeft)
+                        && !Application::Get().GetImGuiLayer()->GetBlockEvents()
                         && mouse_x >= 0 && mouse_y >= 0
                         && mouse_x < (int)viewport_size.x
                         && mouse_y < (int)viewport_size.y
@@ -352,7 +359,7 @@ namespace OpenEngine {
                 bool was_focused = viewport_focused;
                 viewport_focused = ImGui::IsWindowFocused(ImGuiFocusedFlags_RootWindow);
                 viewport_hovered = ImGui::IsWindowHovered(ImGuiHoveredFlags_RootWindow);
-                Application::Get().GetImGuiLayer()->SetBlockEvents((!viewport_focused && !viewport_hovered) || ImGui::IsAnyItemActive());
+                Application::Get().GetImGuiLayer()->SetBlockEvents(ImGui::IsAnyItemActive());
 
                 if (viewport_focused && !was_focused)
                     editor_camera.ResetMousePosition();
@@ -563,10 +570,12 @@ namespace OpenEngine {
             void OnScenePlay()
             {
                 state = PlayState::Play;
+                scene->OnRuntimeStart();
             }
             void OnSceneStop()
             {
                 state = PlayState::Edit;
+                scene->OnRuntimeStop();
             }
 
         private:
diff --git a/editor/include/editor_component.hpp b/editor/include/editor_component.hpp
index bc5623e..7a3ecc7 100644
--- a/editor/include/editor_component.hpp
+++ b/editor/include/editor_component.hpp
@@ -17,6 +17,10 @@ namespace OpenEngine {
     void SpriteOnImGuiRender(entt::registry& registry, entt::entity entity);
     void CameraOnImGuiRender(entt::registry& registry, entt::entity entity);
     void MeshOnImGuiRender(entt::registry&registry, entt::entity entity);
+    void MaterialOnImGuiRender(entt::registry& registry, entt::entity entity);
+    void BodyOnImGuiRender(entt::registry& registry, entt::entity entity);
+    void SphereShapeOnImGuiRender(entt::registry& registry, entt::entity entity);
+    void BoxShapeOnImGuiRender(entt::registry& registry, entt::entity entity);
 }
 
 #endif // EDITOR_COMPONENT_HPP
diff --git a/editor/include/panels/content_browser.hpp b/editor/include/panels/content_browser.hpp
index f68ca4d..72a9fc6 100644
--- a/editor/include/panels/content_browser.hpp
+++ b/editor/include/panels/content_browser.hpp
@@ -18,6 +18,7 @@ namespace OpenEngine {
         private:
             std::filesystem::path current_directory;
             Ref<Texture2D> folder_icon;
+            Ref<Texture2D> file_icon;
     };
 
 }
diff --git a/editor/src/editor_component.cpp b/editor/src/editor_component.cpp
index 051f377..855ee08 100644
--- a/editor/src/editor_component.cpp
+++ b/editor/src/editor_component.cpp
@@ -1,5 +1,10 @@
 #include "imgui.h"
+#include "open_engine/renderer/renderer3d.hpp"
+#include "open_engine/scene/components.hpp"
+#include <Jolt/Physics/Body/MotionType.h>
 #include <editor_component.hpp>
+#include <entt/entity/fwd.hpp>
+#include <glm/gtc/type_ptr.hpp>
 #include <open_engine.hpp>
 
 namespace OpenEngine {
@@ -91,6 +96,7 @@ namespace OpenEngine {
         if (ImGui::InputText("##tagEditor", buffer, sizeof(buffer), ImGuiInputTextFlags_EnterReturnsTrue | ImGuiInputTextFlags_AutoSelectAll)
                 || (!ImGui::IsItemActive() && ImGui::IsMouseClicked(0)))
             tag = buffer;
+        ImGui::Spacing();
     };
 
     void TransformOnImGuiRender(entt::registry& registry, entt::entity entity) 
@@ -101,6 +107,7 @@ namespace OpenEngine {
         DrawVec3Control("Rotation", rotation_comp);
         transform.rotation = glm::radians(rotation_comp);
         DrawVec3Control("Scale", transform.scale);
+        ImGui::Spacing();
     };
     
     void SpriteOnImGuiRender(entt::registry& registry, entt::entity entity) 
@@ -171,8 +178,109 @@ namespace OpenEngine {
 
     };
 
-    void MeshOnImGuiRender(entt::registry&registry, entt::entity entity)
+    void MeshOnImGuiRender(entt::registry& registry, entt::entity entity)
     {
+        auto& mesh_component = registry.get<MeshComponent>(entity); 
 
+        const char* items[] = { "None", "Quad", "Cube" };
+
+        int item_selected_idx = (int)mesh_component.primitive_type;
+        if (ImGui::BeginCombo("Mesh", items[item_selected_idx])) {
+            for (int n = 0; n < 3; n++) {
+                const bool is_selected = (item_selected_idx == n);
+                if (ImGui::Selectable(items[n], is_selected))
+                    item_selected_idx = n;
+
+                // Set the initial focus when opening the combo (scrolling + keyboard navigation focus)
+                if (is_selected)
+                    ImGui::SetItemDefaultFocus();
+            }
+            ImGui::EndCombo();
+        }
+
+        if ((int)mesh_component.primitive_type == (item_selected_idx))
+            return;
+
+        mesh_component.primitive_type = (PrimitiveType)(item_selected_idx);
+        switch (mesh_component.primitive_type) {
+            case OpenEngine::PrimitiveType::Quad:
+                {
+                    mesh_component.mesh = CreateQuad((uint32_t)entity);
+                    break;
+                }
+            case OpenEngine::PrimitiveType::Cube:
+                {
+                    mesh_component.mesh = CreateCube((uint32_t)entity);
+                    break;
+                }
+            default:
+                mesh_component.mesh = nullptr;
+                break;
+        }
+    }
+
+    void MaterialOnImGuiRender(entt::registry& registry, entt::entity entity)
+    {
+        auto& material = registry.get<MaterialComponent>(entity).material;
+
+        ImGui::SliderFloat4("Albedo", glm::value_ptr(material.albedo), 0, 1);
+        ImGui::SliderFloat("Roughness", &material.roughness, 0, 1);
+        ImGui::SliderFloat("Metallic", &material.metallic, 0, 1);
+        ImGui::SliderFloat("Ambient strength", &material.ambient_strength, 0, 1);
+        ImGui::SliderFloat("Specular strength", &material.specular_strength, 0, 10);
+    }
+
+    void BodyOnImGuiRender(entt::registry &registry, entt::entity entity)
+    {
+        auto& body_comp = registry.get<PhysicsBodyComponent>(entity);
+
+        const char* items[] = { "Static", "Kinematic", "Dynamic" };
+        int item_selected_idx = body_comp.type;
+
+        if (ImGui::BeginCombo("Body type", items[item_selected_idx])) {
+            for (int n = 0; n < 3; n++)
+            {
+                const bool is_selected = (item_selected_idx == n);
+                if (ImGui::Selectable(items[n], is_selected))
+                    item_selected_idx = n;
+
+                // Set the initial focus when opening the combo (scrolling + keyboard navigation focus)
+                if (is_selected)
+                    ImGui::SetItemDefaultFocus();
+            }
+            ImGui::EndCombo();
+        }
+
+        body_comp.type = item_selected_idx;
+
+        ImGui::SliderFloat("Linear damping", &body_comp.linear_damping, 0, 1);
+        ImGui::SliderFloat("Angular damping", &body_comp.angular_damping, 0, 1);
+        ImGui::SliderFloat("Gravity factor", &body_comp.gravity_factor, 0, 1);
+        ImGui::SliderFloat("Bounciness", &body_comp.restitution, 0, 1);
+        ImGui::SliderFloat("Friction", &body_comp.friction, 0, 1);
+    }
+
+    void SphereShapeOnImGuiRender(entt::registry &registry, entt::entity entity)
+    {
+        auto& sphere_comp = registry.get<SphereShapeComponent>(entity);
+        
+        ImGui::DragFloat("Radius",
+                &sphere_comp.radius,
+                0.1f,
+                0.11f, FLT_MAX,
+                "%.2f",
+                ImGuiSliderFlags_AlwaysClamp);
+    }
+
+    void BoxShapeOnImGuiRender(entt::registry &registry, entt::entity entity)
+    {
+        auto& box_comp = registry.get<BoxShapeComponent>(entity);
+        
+        ImGui::DragFloat3("Size",
+                glm::value_ptr(box_comp.size),
+                0.1f,
+                0.11f, FLT_MAX,
+                "%.2f",
+                ImGuiSliderFlags_AlwaysClamp);
     }
 }
diff --git a/editor/src/panels/content_browser.cpp b/editor/src/panels/content_browser.cpp
old mode 100644
new mode 100755
index acb26cd..7d7c056
--- a/editor/src/panels/content_browser.cpp
+++ b/editor/src/panels/content_browser.cpp
@@ -15,8 +15,9 @@ namespace OpenEngine {
     ContentBrowserPanel::ContentBrowserPanel()
         : current_directory(assets_directory)
     {
-        // TODO: Add file texture. Get free icons and add license
-        folder_icon = Texture2D::Create("resources/textures/icons/folder.png");
+        // TODO: Add license
+        folder_icon = Texture2D::Create("resources/textures/icons/folder2.png");
+        file_icon = Texture2D::Create("resources/textures/icons/file.png");
     }
 
     void ContentBrowserPanel::OnImGuiRender()
@@ -30,6 +31,16 @@ namespace OpenEngine {
                 current_directory = current_directory.parent_path();
 
         auto directory_it = std::filesystem::directory_iterator(current_directory);
+        std::vector<std::filesystem::directory_entry> entries;
+
+        for (auto entry : directory_it)
+            entries.emplace_back(entry);
+
+        std::sort(entries.begin(), entries.end(),
+                [](const std::filesystem::directory_entry& a,
+                    const std::filesystem::directory_entry& b) {
+                return (a.is_directory() && !b.is_directory());
+                });
 
         ImVec2 button_size = { 100, 100 };
         auto panel_width = ImGui::GetContentRegionAvail().x;
@@ -42,9 +53,12 @@ namespace OpenEngine {
 
         ImGui::PushStyleVar(ImGuiStyleVar_CellPadding, padding);
 
+        float margin = 20.0f;
+        ImGui::Indent(margin);
+
         if (ImGui::BeginTable("table1", table_columns, ImGuiTableFlags_SizingFixedSame))
         {
-            for (auto& entry : directory_it) {
+            for (auto& entry : entries) {
                 auto file_name = entry.path().filename().string();
 
                 ImGui::PushID(file_name.c_str());
@@ -56,17 +70,14 @@ namespace OpenEngine {
                 ImGui::PushStyleColor(ImGuiCol_ButtonActive, { 0.270f, 0.278f, 0.352f, 1.0f });
 
                 ImGui::BeginGroup();
-                ImGui::ImageButton("##X", (ImTextureID)folder_icon->GetID(), button_size, { 0, 1 }, { 1, 0 });
+                Ref<Texture2D> icon = entry.is_directory() ? folder_icon : file_icon;
+                ImGui::ImageButton("##X", (ImTextureID)icon->GetID(), button_size, { 0, 1 }, { 1, 0 });
                 if (entry.is_regular_file() && ImGui::BeginDragDropSource()) {
                     const char* source = entry.path().c_str();
                     ImGui::SetDragDropPayload("CONTENT_BROWSER_PAYLOAD", source, (strlen(source) + 1) * sizeof(char), ImGuiCond_Once);
 
                     ImGui::EndDragDropSource();
                 }
-
-                float columnWidth = ImGui::GetColumnWidth();
-                float textWidth = ImGui::CalcTextSize(file_name.c_str()).x;
-                ImGui::SetCursorPosX(ImGui::GetCursorPosX() + (columnWidth - textWidth) * 0.5f);
                 ImGui::TextWrapped("%s", file_name.c_str());
 
                 ImGui::EndGroup();
@@ -81,6 +92,7 @@ namespace OpenEngine {
             }
             ImGui::EndTable();
         }
+        ImGui::Unindent();
         ImGui::PopStyleVar();
 
         ImGui::End();
diff --git a/editor/src/panels/scene_hierarchy.cpp b/editor/src/panels/scene_hierarchy.cpp
index f00d60e..652febf 100644
--- a/editor/src/panels/scene_hierarchy.cpp
+++ b/editor/src/panels/scene_hierarchy.cpp
@@ -1,4 +1,3 @@
-#include "open_engine/scene/components.hpp"
 #include "open_engine/scene/entity.hpp"
 #include "editor_component.hpp"
 
@@ -23,6 +22,10 @@ namespace OpenEngine {
         RegisterDrawer<SpriteRendererComponent>("Sprite Renderer", &SpriteOnImGuiRender);
         RegisterDrawer<CameraComponent>("Camera", &CameraOnImGuiRender);
         RegisterDrawer<MeshComponent>("Mesh", &MeshOnImGuiRender);
+        RegisterDrawer<MaterialComponent>("Material", &MaterialOnImGuiRender);
+        RegisterDrawer<PhysicsBodyComponent>("Physics Body", &BodyOnImGuiRender);
+        RegisterDrawer<SphereShapeComponent>("Sphere Shape", &SphereShapeOnImGuiRender);
+        RegisterDrawer<BoxShapeComponent>("Box Shape", &BoxShapeOnImGuiRender);
 
         scene = context;
         selected_context = {};
@@ -51,6 +54,26 @@ namespace OpenEngine {
                 selected_context.AddComponent<MeshComponent>();
                 ImGui::CloseCurrentPopup();
             }
+        if (!selected_context.HasComponent<MaterialComponent>())
+            if (ImGui::MenuItem("Material")) {
+                selected_context.AddComponent<MaterialComponent>();
+                ImGui::CloseCurrentPopup();
+            }
+        if (!selected_context.HasComponent<PhysicsBodyComponent>())
+            if (ImGui::MenuItem("Physics body")) {
+                selected_context.AddComponent<PhysicsBodyComponent>();
+                ImGui::CloseCurrentPopup();
+            }
+        if (!selected_context.HasComponent<SphereShapeComponent>())
+            if (ImGui::MenuItem("Sphere shape")) {
+                selected_context.AddComponent<SphereShapeComponent>();
+                ImGui::CloseCurrentPopup();
+            }
+        if (!selected_context.HasComponent<BoxShapeComponent>())
+            if (ImGui::MenuItem("Box shape")) {
+                selected_context.AddComponent<BoxShapeComponent>();
+                ImGui::CloseCurrentPopup();
+            }
     }
 
     void EntityPopup(Ref<Scene>& scene)
@@ -195,17 +218,18 @@ namespace OpenEngine {
     void SceneHierarchy::DrawComponents(Entity& entity)
     {
         auto& reg = scene->GetRegistry();
-        entt::entity handle = selected_context;
+        entt::entity handle = entity;
 
-        if (!selected_context || !entity)
+        if (!entity)
             return;
 
         entity.GetComponents<TagComponent>();
         TagOnImGuiRender(reg, entity);
 
+        // TODO: Defer deletion like the entities?
+        std::vector<entt::id_type> pending_deletion; // 0 is null/invalid in entt usually
 
-        std::vector<entt::id_type> component_to_delete; // 0 is null/invalid in entt usually
-                                                        // Iterate through every component type entt knows about
+        // Iterate through every component type entt knows about
         for (auto [id, storage] : reg.storage()) {
             if (storage.contains(handle)) {
                 if (drawers.contains(id)) {
@@ -228,20 +252,24 @@ namespace OpenEngine {
 
                     if (ImGui::BeginPopup("component_settings")) {
                         if (ImGui::MenuItem("Remove component"))
-                            component_to_delete.emplace_back(id);
+                            pending_deletion.emplace_back(id);
 
                         ImGui::EndPopup();
                     }
 
                     if (opened) {
+                        ImGui::Spacing();
                         drawers[id].draw_func(reg, handle);
+                        ImGui::Spacing();
                         ImGui::TreePop();
                     }
                 }
             }
         }
 
-        for (auto& id : component_to_delete)
+        for (auto& id : pending_deletion) {
             drawers[id].remove_func(reg, entity);
+            pending_deletion.clear();
+        }
     }
 }
diff --git a/imgui.ini b/imgui.ini
index 7fa393d..9bfba42 100644
--- a/imgui.ini
+++ b/imgui.ini
@@ -173,11 +173,11 @@ DockSpace               ID=0x08BD597D Window=0x1BBC0F80 Pos=0,24 Size=1272,1363
             DockNode    ID=0x0000000F Parent=0x0000000D SizeRef=594,60 Selected=0x8325EBDA
             DockNode    ID=0x00000010 Parent=0x0000000D SizeRef=594,931 Split=Y Selected=0xC450F867
               DockNode  ID=0x00000011 Parent=0x00000010 SizeRef=594,35 HiddenTabBar=1 Selected=0xAB37695D
-              DockNode  ID=0x00000012 Parent=0x00000010 SizeRef=594,956 CentralNode=1 Selected=0xC450F867
+              DockNode  ID=0x00000012 Parent=0x00000010 SizeRef=594,964 CentralNode=1 Selected=0xC450F867
           DockNode      ID=0x0000000E Parent=0x0000000B SizeRef=800,993 Selected=0x3EEA4247
         DockNode        ID=0x0000000C Parent=0x00000009 SizeRef=409,368 Selected=0x42C24103
       DockNode          ID=0x0000000A Parent=0x00000002 SizeRef=483,600 Selected=0x1BCA3180
   DockNode              ID=0x00000006 Parent=0x08BD597D SizeRef=450,1386 Split=Y Selected=0x8C72BEA8
-    DockNode            ID=0x00000007 Parent=0x00000006 SizeRef=444,769 Selected=0x8C72BEA8
-    DockNode            ID=0x00000008 Parent=0x00000006 SizeRef=444,531 Selected=0x5E5F7166
+    DockNode            ID=0x00000007 Parent=0x00000006 SizeRef=444,805 Selected=0x8C72BEA8
+    DockNode            ID=0x00000008 Parent=0x00000006 SizeRef=444,556 Selected=0x5E5F7166
 
diff --git a/open_engine/CMakeLists.txt b/open_engine/CMakeLists.txt
index 808c01d..736726e 100644
--- a/open_engine/CMakeLists.txt
+++ b/open_engine/CMakeLists.txt
@@ -74,3 +74,5 @@ add_subdirectory(vendor/glad
 )
 
 add_subdirectory("vendor/nativefiledialog-extended")
+
+target_compile_options(open_engine PRIVATE -msse4.1 -msse4.2 -mavx -mavx2)
diff --git a/open_engine/include/open_engine/core/uuid.hpp b/open_engine/include/open_engine/core/uuid.hpp
new file mode 100644
index 0000000..3ab6d36
--- /dev/null
+++ b/open_engine/include/open_engine/core/uuid.hpp
@@ -0,0 +1,36 @@
+#ifndef UUID_HPP
+#define UUID_HPP
+
+#include <cstdint>
+
+namespace OpenEngine {
+
+    class UUID
+    {
+        public:
+            UUID();
+            UUID(uint64_t uuid);
+            UUID(const UUID&) = default;
+
+            operator uint64_t() const { return uuid; };
+
+        private:
+            uint64_t uuid;
+    };
+
+}
+
+namespace std {
+
+    template<>
+        struct hash<OpenEngine::UUID>
+        {
+            std::size_t operator()(const OpenEngine::UUID& uuid) const
+            {
+                return hash<uint64_t>()((uint64_t)uuid);
+            }
+        };
+
+}
+
+#endif // UUID_HPP
diff --git a/open_engine/include/open_engine/imgui/imgui_layer.hpp b/open_engine/include/open_engine/imgui/imgui_layer.hpp
index 176c5b1..4cab138 100644
--- a/open_engine/include/open_engine/imgui/imgui_layer.hpp
+++ b/open_engine/include/open_engine/imgui/imgui_layer.hpp
@@ -19,6 +19,7 @@ namespace OpenEngine {
             bool CloseWindow(OpenEngine::KeyPressedEvent& event);
 
             void SetBlockEvents(bool block) { block_events = block; };
+            bool GetBlockEvents() { return block_events; };
 
             void Begin();
             void End();
diff --git a/open_engine/include/open_engine/input/input_system.hpp b/open_engine/include/open_engine/input/input_system.hpp
index 8adcb45..65d5b33 100644
--- a/open_engine/include/open_engine/input/input_system.hpp
+++ b/open_engine/include/open_engine/input/input_system.hpp
@@ -2,7 +2,6 @@
 #define INPUT_HPP
 
 #include "open_engine/input/mouse_codes.hpp"
-#include "open_engine/ref_scope.hpp"
 #include "open_engine/input/keycodes.hpp"
 
 #include <string>
diff --git a/open_engine/include/open_engine/physics.hpp b/open_engine/include/open_engine/physics.hpp
new file mode 100644
index 0000000..673a5d4
--- /dev/null
+++ b/open_engine/include/open_engine/physics.hpp
@@ -0,0 +1,191 @@
+#ifndef PHYSICS_HPP
+#define PHYSICS_HPP
+
+#include "logging.hpp"
+
+#include <Jolt/Jolt.h>
+#include <Jolt/Physics/Body/BodyInterface.h>
+#include <Jolt/RegisterTypes.h>
+#include <Jolt/Core/Factory.h>
+#include <Jolt/Core/TempAllocator.h>
+#include <Jolt/Core/JobSystemThreadPool.h>
+#include <Jolt/Physics/PhysicsSettings.h>
+#include <Jolt/Physics/PhysicsSystem.h>
+#include <Jolt/Physics/Collision/Shape/BoxShape.h>
+#include <Jolt/Physics/Collision/Shape/SphereShape.h>
+#include <Jolt/Physics/Body/BodyCreationSettings.h>
+#include <Jolt/Physics/Body/BodyActivationListener.h>
+
+#include <cstdarg>
+#include <glm/glm.hpp>
+
+using namespace JPH;
+using namespace JPH::literals;
+
+// Callback for traces, connect this to your own trace function if you have one
+static void TraceImpl(const char *in_fmt, ...)
+{
+    // Format the message
+    va_list list;
+    va_start(list, in_fmt);
+    char buffer[1024];
+    vsnprintf(buffer, sizeof(buffer), in_fmt, list);
+    va_end(list);
+
+    OE_CORE_TRACE("Jolt: {}", buffer);
+}
+
+#ifdef JPH_ENABLE_ASSERTS
+// Callback for asserts, connect this to your own assert handler if you have one
+static bool AssertFailedImpl(const char *in_expression, const char *in_message, const char *in_file, uint in_line)
+{
+    OE_CORE_ERROR("Jolt: Assert in file: {}:{} :({}) {}", in_file, in_line, in_expression, (in_message != nullptr? in_message : ""));
+
+    // Breakpoint
+    return true;
+};
+#endif // JPH_ENABLE_ASSERTS
+
+// Layer that objects can be in, determines which other objects it can collide with
+// Typically you at least want to have 1 layer for moving bodies and 1 layer for static bodies, but you can have more
+// layers if you want. E.g. you could have a layer for high detail collision (which is not used by the physics simulation
+// but only if you do collision testing).
+namespace Layers {
+	static constexpr ObjectLayer NON_MOVING = 0;
+	static constexpr ObjectLayer MOVING = 1;
+	static constexpr ObjectLayer NUM_LAYERS = 2;
+};
+
+class ObjectLayerPairFilterImpl : public ObjectLayerPairFilter
+{
+    public:
+        virtual bool ShouldCollide(ObjectLayer object1, ObjectLayer object2) const override;
+};
+
+// Each broadphase layer results in a separate bounding volume tree in the broad phase. You at least want to have
+// a layer for non-moving and moving objects to avoid having to update a tree full of static objects every frame.
+// You can have a 1-on-1 mapping between object layers and broadphase layers (like in this case) but if you have
+// many object layers you'll be creating many broad phase trees, which is not efficient. If you want to fine tune
+// your broadphase layers define JPH_TRACK_BROADPHASE_STATS and look at the stats reported on the TTY.
+namespace BroadPhaseLayers
+{
+	static constexpr BroadPhaseLayer NON_MOVING(0);
+	static constexpr BroadPhaseLayer MOVING(1);
+	static constexpr uint NUM_LAYERS(2);
+};
+
+inline JPH::Vec3 ToJolt(const glm::vec3& v) { return JPH::Vec3(v.x, v.y, v.z); };
+
+class BPLayerInterfaceImpl final : public BroadPhaseLayerInterface
+{
+    public:
+        BPLayerInterfaceImpl()
+        {
+            object_to_broad_phase[Layers::NON_MOVING] = BroadPhaseLayers::NON_MOVING;
+            object_to_broad_phase[Layers::MOVING] = BroadPhaseLayers::MOVING;
+        }
+
+        virtual uint GetNumBroadPhaseLayers() const override { return BroadPhaseLayers::NUM_LAYERS; };
+
+        virtual BroadPhaseLayer GetBroadPhaseLayer(ObjectLayer layer) const override
+        {
+            JPH_ASSERT(layer < Layers::NUM_LAYERS);
+            return object_to_broad_phase[layer];
+        }
+
+    private:
+        BroadPhaseLayer	object_to_broad_phase[Layers::NUM_LAYERS];
+};
+
+class ObjectVsBroadPhaseLayerFilterImpl : public ObjectVsBroadPhaseLayerFilter
+{
+    public:
+        virtual bool ShouldCollide(ObjectLayer layer1, BroadPhaseLayer layer2) const override
+        {
+            switch (layer1)
+            {
+                case Layers::NON_MOVING:
+                    return layer2 == BroadPhaseLayers::MOVING;
+                case Layers::MOVING:
+                    return true;
+                default:
+                    JPH_ASSERT(false);
+                    return false;
+            }
+        }
+};
+
+// An example contact listener
+class MyContactListener : public ContactListener
+{
+public:
+	// See: ContactListener
+	virtual ValidateResult	OnContactValidate(const Body &inBody1, const Body &inBody2, RVec3Arg inBaseOffset, const CollideShapeResult &inCollisionResult) override
+	{
+		OE_CORE_TRACE("Jolt: Contact validate callback");
+
+		// Allows you to ignore a contact before it is created (using layers to not make objects collide is cheaper!)
+		return ValidateResult::AcceptAllContactsForThisBodyPair;
+	}
+
+	virtual void			OnContactAdded(const Body &inBody1, const Body &inBody2, const ContactManifold &inManifold, ContactSettings &ioSettings) override
+	{
+		OE_CORE_TRACE("Jolt: A contact was added");
+	}
+
+	virtual void			OnContactPersisted(const Body &inBody1, const Body &inBody2, const ContactManifold &inManifold, ContactSettings &ioSettings) override
+	{
+		OE_CORE_TRACE("Jolt: A contact was persisted");
+	}
+
+	virtual void			OnContactRemoved(const SubShapeIDPair &inSubShapePair) override
+	{
+		OE_CORE_TRACE("Jolt: A contact was removed");
+	}
+};
+
+// An example activation listener
+class MyBodyActivationListener : public BodyActivationListener
+{
+public:
+	virtual void		OnBodyActivated(const BodyID &inBodyID, uint64 inBodyUserData) override
+	{
+		OE_CORE_TRACE("Jolt: A body got activated");
+	}
+
+	virtual void		OnBodyDeactivated(const BodyID &inBodyID, uint64 inBodyUserData) override
+	{
+		OE_CORE_TRACE("Jolt: A body went to sleep");
+	}
+};
+
+namespace OpenEngine {
+
+    // Consider making this static like the renderer
+    class PhysicsEngine
+    {
+        public:
+            PhysicsEngine();
+            ~PhysicsEngine();
+
+            // TODO: Temp, make abstract function to create a body
+            BodyInterface& GetBodyInterface() { return physics_system.GetBodyInterface(); };
+            void Update( float delta_time, int collision_steps);
+
+        private:
+            PhysicsSystem physics_system;
+
+            Ref<TempAllocatorImpl> tmp_allocator;
+            Ref<JobSystemThreadPool> job_system;
+
+            MyBodyActivationListener body_activation_listener;
+            MyContactListener contact_listener;
+
+            BPLayerInterfaceImpl broad_phase_layer_interface;
+            ObjectVsBroadPhaseLayerFilterImpl object_vs_broadphase_layer_filter;
+            ObjectLayerPairFilterImpl object_vs_object_layer_filter;
+
+    };
+}
+
+#endif // PHYSICS_HPP
diff --git a/open_engine/include/open_engine/renderer/renderer3d.hpp b/open_engine/include/open_engine/renderer/renderer3d.hpp
index c79cd39..2ee90df 100644
--- a/open_engine/include/open_engine/renderer/renderer3d.hpp
+++ b/open_engine/include/open_engine/renderer/renderer3d.hpp
@@ -10,6 +10,14 @@
 namespace OpenEngine {
 
     // SHOULD BE MOVED ==================================
+
+    enum class PrimitiveType
+    {
+        None = 0,
+        Quad,
+        Cube
+    };
+
     struct MeshVertex
     {
         glm::vec3 position;
@@ -19,6 +27,15 @@ namespace OpenEngine {
         uint32_t id = -1;
     };
 
+    struct Material
+    {
+        glm::vec4 albedo = { 1.0f, 1.0f, 1.0f, 1.0f };
+        float roughness = 1.0f;
+        float metallic = 1.0f;
+        float ambient_strength = 1.0f;
+        float specular_strength = 1.0f;
+    };
+
     struct Mesh
     {
         Ref<VertexArray> vertex_array;
@@ -46,7 +63,8 @@ namespace OpenEngine {
             static void BeginScene(const EditorCamera& camera);
             static void EndScene();
 
-            static void DrawMesh(const Ref<Mesh>& mesh, const glm::mat4& transform);
+            static void DrawMesh(const Ref<Mesh>& mesh, Material& material,
+                    const glm::mat4& transform);
     };
 }
 
diff --git a/open_engine/include/open_engine/renderer/uniform_buffer.hpp b/open_engine/include/open_engine/renderer/uniform_buffer.hpp
index c6ccf6f..d38afe8 100644
--- a/open_engine/include/open_engine/renderer/uniform_buffer.hpp
+++ b/open_engine/include/open_engine/renderer/uniform_buffer.hpp
@@ -8,7 +8,7 @@ namespace OpenEngine {
     class UniformBuffer
     {
         public:
-            virtual ~UniformBuffer() {}
+            virtual ~UniformBuffer() = default;
             virtual void SetData(const void* data, uint32_t size,
                     uint32_t offset = 0) = 0;
 
diff --git a/open_engine/include/open_engine/scene/components.hpp b/open_engine/include/open_engine/scene/components.hpp
index b1e55f1..d5fe5cb 100644
--- a/open_engine/include/open_engine/scene/components.hpp
+++ b/open_engine/include/open_engine/scene/components.hpp
@@ -1,12 +1,19 @@
 #ifndef COMPONENTS_HPP
 #define COMPONENTS_HPP
 
-#include "open_engine/scene/native_scriptable_entity.hpp"
 #include "open_engine/renderer/renderer3d.hpp"
 #include "open_engine/scene/scene_camera.hpp"
 #include "open_engine/renderer/texture.hpp"
 #include "open_engine/renderer/renderer3d.hpp"
+#include "open_engine/physics.hpp"
+#include "open_engine/core/uuid.hpp"
 
+#include <Jolt/Physics/Body/BodyCreationSettings.h>
+#include <Jolt/Physics/Body/BodyInterface.h>
+#include <Jolt/Physics/Body/MotionType.h>
+#include <Jolt/Physics/Collision/ObjectLayer.h>
+#include <Jolt/Physics/Collision/Shape/Shape.h>
+#include <Jolt/Physics/EActivation.h>
 #include <glm/ext/matrix_transform.hpp>
 #include <glm/gtc/type_ptr.hpp>
 #include <glm/fwd.hpp>
@@ -21,6 +28,15 @@
 
 namespace OpenEngine {
 
+    struct IDComponent
+    {
+        UUID id;
+
+        IDComponent() = default;
+        IDComponent(const IDComponent&) = default;
+        IDComponent(const UUID& uuid) : id(uuid) {};
+    };
+
     struct TagComponent
     {
         std::string tag;
@@ -67,6 +83,8 @@ namespace OpenEngine {
         CameraComponent(const CameraComponent&) = default;
     };
 
+    class NativeScriptableEntity;
+
     struct NativeScriptComponent 
     {
         NativeScriptableEntity* instance = nullptr;
@@ -74,9 +92,6 @@ namespace OpenEngine {
         NativeScriptableEntity* (*InstanciateScript)();
         void (*DestroyInstanceScript)(NativeScriptComponent*);
 
-        void OnImGuiRender(Entity& entity) 
-        {};
-
         template <typename T>
             void Bind()
             {
@@ -86,19 +101,58 @@ namespace OpenEngine {
                     (delete nsc->instance);
                     nsc->instance = nullptr;
                 };
-            }
+            };
     };
 
     struct MeshComponent
     {
         Ref<Mesh> mesh;
+        PrimitiveType primitive_type = PrimitiveType::None;
         
         MeshComponent() = default;
         MeshComponent(const MeshComponent&) = default;
         MeshComponent(const Ref<Mesh>& mesh)
-            : mesh(mesh) {}
+            : mesh(mesh) {};
     };
 
+    struct MaterialComponent
+    {
+        Material material;
+
+        MaterialComponent() = default;
+        MaterialComponent(const MaterialComponent&) = default;
+        MaterialComponent(const Material& material)
+            : material(material) {};
+    };
+
+    struct PhysicsBodyComponent
+    {
+        BodyID body;
+
+        float linear_damping = 0.05f;
+        float angular_damping = 0.05f;
+        float gravity_factor = 1.0f;
+        float restitution = 0.8f;
+        float friction = 0.5f;
+
+        int type = (int)EMotionType::Static;
+        int initial_activation_state = (int)EActivation::Activate;
+        int layer = (int)Layers::MOVING;
+
+        PhysicsBodyComponent() = default;
+        PhysicsBodyComponent(const PhysicsBodyComponent&) = default;
+    };
+
+    // TODO: Let's add more shapes
+    struct BoxShapeComponent
+    {
+        glm::vec3 size = { 1.0f, 1.0f, 1.0f };
+    };
+
+    struct SphereShapeComponent
+    {
+        float radius = 1.0f;
+    };
 }
 
 #endif // COMPONENTS_HPP
diff --git a/open_engine/include/open_engine/scene/entity.hpp b/open_engine/include/open_engine/scene/entity.hpp
index bfe1e30..50d375a 100644
--- a/open_engine/include/open_engine/scene/entity.hpp
+++ b/open_engine/include/open_engine/scene/entity.hpp
@@ -3,6 +3,8 @@
 
 #include "open_engine/core.hpp"
 
+#include "open_engine/core/uuid.hpp"
+#include "open_engine/scene/components.hpp"
 #include "open_engine/scene/scene.hpp"
 
 #include <cstdint>
@@ -48,6 +50,8 @@ namespace OpenEngine {
                     return scene->registry.all_of<T>(handle);
                 };
 
+            UUID GetUUID() { return GetComponents<IDComponent>().id; };
+
             operator bool() const { return handle != entt::null; };
             operator entt::entity() const { return handle; };
             operator uint32_t() const { return (uint32_t)handle; };
diff --git a/open_engine/include/open_engine/scene/native_scriptable_entity.hpp b/open_engine/include/open_engine/scene/native_scriptable_entity.hpp
index dceb611..65ae6c2 100644
--- a/open_engine/include/open_engine/scene/native_scriptable_entity.hpp
+++ b/open_engine/include/open_engine/scene/native_scriptable_entity.hpp
@@ -1,6 +1,7 @@
 #ifndef NATIVE_SCRIPTABLE_ENTITY_HPP
 #define NATIVE_SCRIPTABLE_ENTITY_HPP
 
+#include "open_engine/scene/native_scriptable_entity.hpp"
 #include "open_engine/scene/entity.hpp"
 
 namespace OpenEngine {
diff --git a/open_engine/include/open_engine/scene/scene.hpp b/open_engine/include/open_engine/scene/scene.hpp
index cf299a8..24d405a 100644
--- a/open_engine/include/open_engine/scene/scene.hpp
+++ b/open_engine/include/open_engine/scene/scene.hpp
@@ -1,8 +1,11 @@
 #ifndef SCENE_HPP
 #define SCENE_HPP
 
+#include "open_engine/core/uuid.hpp"
 #include "open_engine/renderer/editor_camera.hpp"
+#include "open_engine/physics.hpp"
 
+#include <Jolt/Physics/Body/BodyInterface.h>
 #include <entt/entity/fwd.hpp>
 #include <entt/entt.hpp>
 #include <cstdint>
@@ -16,8 +19,13 @@ namespace OpenEngine {
         public:
             Scene() = default;
             ~Scene() = default;
+            Scene(Scene& other) {};
+
+            void OnRuntimeStart();
+            void OnRuntimeStop();
 
             Entity CreateEntity(const std::string& name = std::string());
+            Entity CreateEntityWithUUID(UUID uuid, const std::string& name = std::string());
             void DeleteEntity(entt::entity entity);
             void MarkEntityForDeletion(Entity entity);
 
@@ -28,19 +36,24 @@ namespace OpenEngine {
             void OnViewportResize(uint32_t width, uint32_t height);
 
             entt::registry& GetRegistry() { return registry; };
-
+            PhysicsEngine& GetPhysicsEngine() { return physics_engine; };
             Entity GetPrimaryCamera();
 
         private:
+            void OnUpdatePhysics();
+
             template<typename T>
                 void OnComponentAdded(Entity entity, T& component);
 
         private:
             entt::registry registry;
+            PhysicsEngine physics_engine;
+
+            BodyInterface* body_interface;
 
             uint32_t viewport_width = 0, viewport_height = 0;
 
-            std::vector<entt::entity> entities_to_be_deleted;
+            std::vector<entt::entity> pending_deletion;
 
             friend class SceneSerializer;
             friend class Entity;
diff --git a/open_engine/src/open_engine/core/uuid.cpp b/open_engine/src/open_engine/core/uuid.cpp
new file mode 100644
index 0000000..5e08f75
--- /dev/null
+++ b/open_engine/src/open_engine/core/uuid.cpp
@@ -0,0 +1,24 @@
+#include <cstdint>
+#include <pch.hpp>
+
+#include <core/uuid.hpp>
+
+#include <random>
+
+namespace OpenEngine {
+
+    static std::random_device s_random_device;
+    static std::mt19937_64 s_engine(s_random_device());
+    static std::uniform_int_distribution<uint64_t> s_uniform_distribution;
+
+    UUID::UUID()
+        : uuid(s_uniform_distribution(s_engine))
+    {
+    }
+
+    UUID::UUID(uint64_t uuid)
+        : uuid(uuid)
+    {
+    }
+
+}
diff --git a/open_engine/src/open_engine/physics.cpp b/open_engine/src/open_engine/physics.cpp
new file mode 100644
index 0000000..c3de441
--- /dev/null
+++ b/open_engine/src/open_engine/physics.cpp
@@ -0,0 +1,73 @@
+#include <pch.hpp>
+
+#include <ref_scope.hpp>
+#include <physics.hpp>
+
+#include <Jolt/Physics/Body/BodyInterface.h>
+#include <Jolt/Core/JobSystemThreadPool.h>
+#include <Jolt/Core/Memory.h>
+#include <Jolt/Physics/PhysicsSystem.h>
+#include <Jolt/Physics/PhysicsUpdateContext.h>
+
+bool ObjectLayerPairFilterImpl::ShouldCollide(ObjectLayer object1, ObjectLayer object2) const
+{
+    switch (object1)
+    {
+        case Layers::NON_MOVING:
+            return object2 == Layers::MOVING; // Non moving only collides with moving
+        case Layers::MOVING:
+            return true; // Moving collides with everything
+        default:
+            JPH_ASSERT(false);
+            return false;
+    }
+}
+
+namespace OpenEngine {
+
+    PhysicsEngine::PhysicsEngine()
+    {
+        RegisterDefaultAllocator();
+
+        Trace = TraceImpl;
+        JPH_IF_ENABLE_ASSERTS(AssertFailed = AssertFailedImpl);
+
+        Factory::sInstance = new Factory();
+
+        RegisterTypes();
+
+        tmp_allocator = CreateRef<TempAllocatorImpl>(10 * 1024 * 1024);
+
+        job_system = CreateRef<JobSystemThreadPool>(cMaxPhysicsJobs,
+                cMaxPhysicsBarriers,
+                thread::hardware_concurrency() - 1);
+
+        physics_system.Init(
+                1024,
+                0,
+                1024,
+                1024,
+                broad_phase_layer_interface,
+                object_vs_broadphase_layer_filter,
+                object_vs_object_layer_filter);
+
+        //physics_system.SetBodyActivationListener(&body_activation_listener);
+        //physics_system.SetContactListener(&contact_listener);
+
+        // TODO: Check the comment on Jolt's example
+        physics_system.OptimizeBroadPhase();
+    }
+
+    PhysicsEngine::~PhysicsEngine() {
+        UnregisterTypes();
+
+        // Destroy the factory
+        delete Factory::sInstance;
+        Factory::sInstance = nullptr;
+    };
+
+    void PhysicsEngine::Update(float delta_time, int collision_steps)
+    {
+        physics_system.Update(delta_time, collision_steps, &*tmp_allocator, &*job_system);
+    }
+}
diff --git a/open_engine/src/open_engine/renderer/renderer3d.cpp b/open_engine/src/open_engine/renderer/renderer3d.cpp
index cc14723..291bfb7 100644
--- a/open_engine/src/open_engine/renderer/renderer3d.cpp
+++ b/open_engine/src/open_engine/renderer/renderer3d.cpp
@@ -176,6 +176,9 @@ namespace OpenEngine {
         };
         TransformData transform_buffer;
         Ref<UniformBuffer> transform_uniform_buffer;
+
+        Material material_buffer;
+        Ref<UniformBuffer> material_uniform_buffer;
     };
 
     static Renderer3DData renderer_data;
@@ -190,6 +193,7 @@ namespace OpenEngine {
         renderer_data.color_shader_3d = Shader::Create("assets/shaders/color3d.glsl");
         renderer_data.camera_uniform_buffer = UniformBuffer::Create(sizeof(Renderer3DData::CameraData), 0);
         renderer_data.transform_uniform_buffer = UniformBuffer::Create(sizeof(Renderer3DData::TransformData), 1);
+        renderer_data.material_uniform_buffer = UniformBuffer::Create(sizeof(Material), 2);
 
         glEnable(GL_DEBUG_OUTPUT);
         glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
@@ -201,8 +205,10 @@ namespace OpenEngine {
     
     void Renderer3D::Shutdown()
     {
-        renderer_data.camera_uniform_buffer.reset();
         renderer_data.color_shader_3d.reset();
+        renderer_data.camera_uniform_buffer.reset();
+        renderer_data.transform_uniform_buffer.reset();
+        renderer_data.material_uniform_buffer.reset();
     }
     
     void Renderer3D::BeginScene(const SceneCamera& camera, const glm::mat4& transform)
@@ -230,7 +236,8 @@ namespace OpenEngine {
 
     }
 
-    void Renderer3D::DrawMesh(const Ref<Mesh>& mesh, const glm::mat4& transform)
+    void Renderer3D::DrawMesh(const Ref<Mesh>& mesh, Material& material,
+            const glm::mat4& transform)
     {
         OE_PROFILE_FUNCTION();
 
@@ -239,6 +246,9 @@ namespace OpenEngine {
         renderer_data.transform_buffer.transform = transform;
         renderer_data.transform_uniform_buffer->SetData(&renderer_data.transform_buffer, sizeof(Renderer3DData::TransformData));
 
+        renderer_data.material_buffer = material;
+        renderer_data.material_uniform_buffer->SetData(&renderer_data.material_buffer, sizeof(Material));
+
         mesh->vertex_array->Bind();
 
         RenderCommand::DrawIndexed(mesh->vertex_array, mesh->indices.size());
diff --git a/open_engine/src/open_engine/scene/scene.cpp b/open_engine/src/open_engine/scene/scene.cpp
old mode 100644
new mode 100755
index d6a114e..75297ad
--- a/open_engine/src/open_engine/scene/scene.cpp
+++ b/open_engine/src/open_engine/scene/scene.cpp
@@ -1,18 +1,113 @@
-#include <cstdint>
-#include <entt/entity/fwd.hpp>
+#include "logging.hpp"
+#include "physics.hpp"
+#include "ref_scope.hpp"
+#include <Jolt/Physics/Body/MotionType.h>
+#include <Jolt/Physics/Collision/ObjectLayer.h>
+#include <Jolt/Physics/Collision/Shape/ConvexShape.h>
 #include <pch.hpp>
 
 #include <renderer/renderer3d.hpp>
 #include <scene/components.hpp>
+#include <open_engine/scene/native_scriptable_entity.hpp>
 #include <scene/entity.hpp>
 #include <scene/scene.hpp>
+#include <core/time.hpp>
+
+#include <Jolt/Physics/Collision/Shape/Shape.h>
+#include <Jolt/Physics/Collision/Shape/BoxShape.h>
+#include <Jolt/Physics/Collision/Shape/SphereShape.h>
+#include <Jolt/Physics/EActivation.h>
+#include <Jolt/Math/Real.h>
+#include <Jolt/Math/Quat.h>
+#include <cstdint>
+#include <entt/entity/fwd.hpp>
 
 namespace OpenEngine {
 
+    static Ref<ShapeSettings> CreateShape(entt::registry& reg, entt::entity e)
+    {
+        if (reg.any_of<BoxShapeComponent>(e)) {
+            auto& c = reg.get<BoxShapeComponent>(e);
+            return CreateRef<BoxShapeSettings>(ToJolt(c.size * 0.5f));
+        }
+        if (reg.any_of<SphereShapeComponent>(e)) {
+            auto& c = reg.get<SphereShapeComponent>(e);
+            return CreateRef<SphereShapeSettings>(c.radius);
+        }
+
+        OE_CORE_ERROR("Entity has no shape component!");
+        return nullptr;
+    };
+
+    void Scene::OnRuntimeStart()
+    {
+        body_interface = &physics_engine.GetBodyInterface();
+        // TODO: Cleanup components aquisition
+        auto view = registry.view<TransformComponent, PhysicsBodyComponent>();
+        for (auto e : view) {
+            Entity entity = { e, this };
+            
+            auto shape_settings = CreateShape(registry, e);
+            if (!shape_settings)
+                shape_settings = CreateRef<BoxShapeSettings>(Vec3(0.5f, 0.5f, 0.5f));
+
+            auto shape_result = shape_settings->Create();
+            if (shape_result.HasError()) {
+                OE_CORE_ERROR("Shape creation failed: {}", shape_result.GetError().c_str());
+                continue;
+            }
+            ShapeRefC shape = shape_result.Get();
+
+            auto& pbc = entity.GetComponents<PhysicsBodyComponent>();
+            auto& tc = entity.GetComponents<TransformComponent>();
+            
+            glm::vec3& pos = tc.translation;
+            glm::vec3& scale = tc.scale;
+            glm::vec3& rot = tc.rotation;
+
+            Quat quat = Quat::sEulerAngles(Vec3(rot.x, rot.y, rot.z));
+            BodyCreationSettings settings(
+                    shape,
+                    //new BoxShape(Vec3(scale.x * 0.5, scale.y * 0.5f, scale.z * 0.5f)),
+                    Vec3(pos.x, pos.y, pos.z),
+                    quat,
+                    (EMotionType)pbc.type,
+                    pbc.layer);
+
+            settings.mLinearDamping = pbc.linear_damping;
+            settings.mAngularDamping = pbc.angular_damping;
+            settings.mGravityFactor = pbc.gravity_factor;
+            settings.mRestitution = pbc.restitution;
+            settings.mFriction = pbc.friction;
+            settings.mObjectLayer = (ObjectLayer)pbc.layer;
+
+            pbc.body = body_interface->CreateAndAddBody(settings, (EActivation)pbc.initial_activation_state);
+        }
+    }
+
+    void Scene::OnRuntimeStop()
+    {
+        auto view = registry.view<PhysicsBodyComponent>();
+        for (auto e : view) {
+            Entity entity = { e, this };
+
+            auto& pbc = entity.GetComponents<PhysicsBodyComponent>();
+
+            body_interface->RemoveBody(pbc.body);
+            body_interface->DestroyBody(pbc.body);
+        }
+    }
+
     Entity Scene::CreateEntity(const std::string& name)
+    {
+        return CreateEntityWithUUID(UUID(), name);
+    }
+
+    Entity Scene::CreateEntityWithUUID(UUID uuid, const std::string& name)
     {
         Entity entity = { registry.create(), this };
 
+        entity.AddComponent<IDComponent>(uuid);
         auto& tag = entity.AddComponent<TagComponent>();
         tag.tag = name.empty() ? "Entity" : name;
 
@@ -26,15 +121,31 @@ namespace OpenEngine {
 
     void Scene::MarkEntityForDeletion(Entity entity)
     {
-        entities_to_be_deleted.emplace_back(entity);
+        pending_deletion.emplace_back(entity);
     }
     
     void Scene::UpdateEntities()
     {
-        for (auto& entity : entities_to_be_deleted)
+        for (auto& entity : pending_deletion)
             DeleteEntity(entity);
 
-        entities_to_be_deleted.clear();
+        pending_deletion.clear();
+    }
+
+    void Scene::OnUpdatePhysics()
+    {
+        static int step = 0;
+        static float accumulator = 0.0f;
+        static const float fixedDT = 1.0f / 60.0f;
+
+        float real_delta_time = Time::DeltaTime(); // e.g. from a timer
+        accumulator += real_delta_time;
+
+        if (accumulator >= fixedDT) {
+            step++;
+            physics_engine.Update(fixedDT, 1);
+            accumulator -= fixedDT;
+        }
     }
 
     void Scene::OnUpdateRuntime()
@@ -54,6 +165,40 @@ namespace OpenEngine {
                     });
         }
 
+        auto view = registry.view<TransformComponent, PhysicsBodyComponent>();
+        for (auto e : view) {
+            Entity entity = { e, this };
+
+            auto& pos = entity.GetComponents<TransformComponent>().translation;
+            auto& body = entity.GetComponents<PhysicsBodyComponent>();
+
+            body_interface->SetPosition(body.body, { pos.x, pos.y, pos.z }, EActivation::Activate);
+
+            body_interface->SetRestitution(body.body, body.restitution);
+            body_interface->SetFriction(body.body, body.friction);
+        }
+
+        OnUpdatePhysics();
+
+        for (auto e : view) {
+            Entity entity = { e, this };
+
+            auto& transform = entity.GetComponents<TransformComponent>();
+            auto& body = entity.GetComponents<PhysicsBodyComponent>();
+
+            auto position = body_interface->GetPosition(body.body);
+            auto rotation = body_interface->GetRotation(body.body).GetEulerAngles();
+            transform.translation.x = position.GetX();
+            transform.translation.y = position.GetY();
+            transform.translation.z = position.GetZ();
+
+            transform.rotation.x = rotation.GetX();
+            transform.rotation.y = rotation.GetY();
+            transform.rotation.z = rotation.GetZ();
+
+            body_interface->SetGravityFactor(body.body, body.gravity_factor);
+        }
+
         SceneCamera* main_camera = nullptr;
         glm::mat4 main_transform{ 1.0f };
         {
@@ -73,10 +218,15 @@ namespace OpenEngine {
 
                 auto view = registry.view<TransformComponent, MeshComponent>();
 
-                for (const auto& entity : view) {
-                    auto [transform, mesh] = view.get<TransformComponent, MeshComponent>(entity);
+                for (const auto& e : view) {
+                    auto [transform, mesh] = view.get<TransformComponent, MeshComponent>(e);
+                    Entity entity(e, this);
 
-                    Renderer3D::DrawMesh(mesh.mesh, GetTransformFromComp(transform));
+                    Material material;
+                    if (entity.HasComponent<MaterialComponent>())
+                        material = entity.GetComponents<MaterialComponent>().material;
+
+                    Renderer3D::DrawMesh(mesh.mesh, material, GetTransformFromComp(transform));
                     /*
                     if (sprite.texture)
                         Renderer2D::DrawQuad(GetTransformFromComp(transform),
@@ -101,7 +251,14 @@ namespace OpenEngine {
         for (const auto& entity : view) {
             auto [transform, mesh] = view.get<TransformComponent, MeshComponent>(entity);
 
-            Renderer3D::DrawMesh(mesh.mesh, GetTransformFromComp(transform));
+            Material material;
+
+            Entity _entity(entity, this);
+            if (_entity.HasComponent<MaterialComponent>())
+                material = _entity.GetComponents<MaterialComponent>().material;
+
+            if (mesh.mesh)
+                Renderer3D::DrawMesh(mesh.mesh, material, GetTransformFromComp(transform));
         }
 
 		Renderer3D::EndScene();
@@ -170,4 +327,29 @@ namespace OpenEngine {
 	void Scene::OnComponentAdded<MeshComponent>(Entity entity, MeshComponent& component)
 	{
 	}
+
+	template<>
+	void Scene::OnComponentAdded<MaterialComponent>(Entity entity, MaterialComponent& component)
+	{
+	}
+
+	template<>
+	void Scene::OnComponentAdded<PhysicsBodyComponent>(Entity entity, PhysicsBodyComponent& component)
+	{
+	}
+
+	template<>
+	void Scene::OnComponentAdded<SphereShapeComponent>(Entity entity, SphereShapeComponent& component)
+	{
+	}
+
+	template<>
+	void Scene::OnComponentAdded<BoxShapeComponent>(Entity entity, BoxShapeComponent& component)
+	{
+	}
+
+    template<>
+	void Scene::OnComponentAdded<IDComponent>(Entity entity, IDComponent& component)
+	{
+	}
 }
diff --git a/open_engine/src/open_engine/scene/scene_serializer.cpp b/open_engine/src/open_engine/scene/scene_serializer.cpp
index 270273e..9733ea6 100644
--- a/open_engine/src/open_engine/scene/scene_serializer.cpp
+++ b/open_engine/src/open_engine/scene/scene_serializer.cpp
@@ -1,7 +1,9 @@
+#include <cstdint>
 #include <pch.hpp>
 
 #include "core.hpp"
 #include <scene/scene_serializer.hpp>
+#include "renderer/renderer3d.hpp"
 #include "scene/components.hpp"
 #include "scene/entity.hpp"
 
@@ -86,8 +88,10 @@ namespace OpenEngine {
 
     static void SerializeEntity(YAML::Emitter& out, Entity entity)
     {
+        OE_CORE_ASSERT(entity.HasComponent<IDComponent>(), "Entity is missing UUID.");
+
         out << YAML::BeginMap;
-        out << YAML::Key << "Entity" << YAML::Value << "412741205"; // Needs random
+        out << YAML::Key << "Entity" << YAML::Value << entity.GetUUID(); // Needs random
 
         if (entity.HasComponent<TagComponent>())
         {
@@ -113,8 +117,7 @@ namespace OpenEngine {
             out << YAML::EndMap; // TransformComponent
         }
 
-        if (entity.HasComponent<CameraComponent>())
-        {
+        if (entity.HasComponent<CameraComponent>()) {
             out << YAML::Key << "CameraComponent";
             out << YAML::BeginMap; // CameraComponent
 
@@ -149,6 +152,68 @@ namespace OpenEngine {
             out << YAML::EndMap; // SpriteRendererComponent
         }
 
+        if (entity.HasComponent<MeshComponent>()) {
+            out << YAML::Key << "MeshComponent";
+            out << YAML::BeginMap; // MeshComponent
+
+            auto& mesh_component = entity.GetComponents<MeshComponent>();
+            out << YAML::Key << "MeshType" << YAML::Value << (int)mesh_component.primitive_type;
+
+            out << YAML::EndMap; // MeshComponent
+        }
+
+        if (entity.HasComponent<MaterialComponent>()) {
+            out << YAML::Key << "MaterialComponent";
+            out << YAML::BeginMap; // MaterialComponent
+
+            auto& material = entity.GetComponents<MaterialComponent>().material;
+            out << YAML::Key << "Albedo" << YAML::Value << material.albedo;
+            out << YAML::Key << "Roughness" << YAML::Value << material.roughness;
+            out << YAML::Key << "Metalic" << YAML::Value << material.metallic;
+            out << YAML::Key << "AmbiantStrength" << YAML::Value << material.ambient_strength;
+            out << YAML::Key << "SpecularStrength" << YAML::Value << material.specular_strength;
+
+            out << YAML::EndMap; // MaterialComponent
+        }
+
+        if (entity.HasComponent<PhysicsBodyComponent>()) {
+            out << YAML::Key << "PhysicsBodyComponent";
+            out << YAML::BeginMap; // PhysicsBodyComponent
+
+            auto& pbc = entity.GetComponents<PhysicsBodyComponent>();
+            out << YAML::Key << "LinearDamping" << YAML::Value << pbc.linear_damping;
+            out << YAML::Key << "AngularDamping" << YAML::Value << pbc.angular_damping;
+            out << YAML::Key << "GravityFactor" << YAML::Value << pbc.gravity_factor;
+            out << YAML::Key << "Restitution" << YAML::Value << pbc.restitution;
+            out << YAML::Key << "Friction" << YAML::Value << pbc.friction;
+
+            out << YAML::Key << "Type" << YAML::Value << pbc.type;
+            out << YAML::Key << "ActivationState" << YAML::Value << pbc.initial_activation_state;
+            out << YAML::Key << "Layer" << YAML::Value << pbc.layer;
+
+            out << YAML::EndMap; // PhysicsBodyComponent
+        }
+
+        if (entity.HasComponent<BoxShapeComponent>()) {
+            out << YAML::Key << "BoxShapeComponent";
+            out << YAML::BeginMap; //BoxShapeComponent 
+
+            auto& bsc = entity.GetComponents<BoxShapeComponent>();
+            out << YAML::Key << "Size" << YAML::Value << bsc.size;
+
+            out << YAML::EndMap; //BoxShapeComponent 
+        }
+
+        if (entity.HasComponent<SphereShapeComponent>()) {
+            out << YAML::Key << "SphereShapeComponent";
+            out << YAML::BeginMap; //SphereShapeComponent 
+
+            auto& ssc = entity.GetComponents<SphereShapeComponent>();
+            out << YAML::Key << "Radius" << YAML::Value << ssc.radius;
+
+            out << YAML::EndMap; //SphereShapeComponent 
+        }
+
         out << YAML::EndMap;
     }
 
@@ -195,7 +260,7 @@ namespace OpenEngine {
 		{
 			for (auto entity : entities)
 			{
-				uint64_t uuid = entity["Entity"].as<uint64_t>(); // TODO
+				uint64_t uuid = entity["Entity"].as<uint64_t>();
 
 				std::string name;
 				auto tagComponent = entity["TagComponent"];
@@ -204,7 +269,7 @@ namespace OpenEngine {
 
 				OE_CORE_TRACE("Deserialized entity with ID = {0}, name = {1}", uuid, name);
 
-				Entity deserializedEntity = context->CreateEntity(name);
+				Entity deserializedEntity = context->CreateEntityWithUUID(uuid, name);
 
 				auto transformComponent = entity["TransformComponent"];
 				if (transformComponent)
@@ -241,6 +306,66 @@ namespace OpenEngine {
 					auto& src = deserializedEntity.AddComponent<SpriteRendererComponent>();
 					src.color = spriteRendererComponent["Color"].as<glm::vec4>();
 				}
+
+                auto mesh_component = entity["MeshComponent"];
+                if (mesh_component)
+                {
+                    auto& mesh = deserializedEntity.AddComponent<MeshComponent>();
+                    mesh.primitive_type = (PrimitiveType)mesh_component["MeshType"].as<int>();
+                    switch (mesh.primitive_type) {
+                        case OpenEngine::PrimitiveType::Quad: {
+                                mesh.mesh = CreateQuad((uint32_t)deserializedEntity);
+                                break;
+                            }
+                        case OpenEngine::PrimitiveType::Cube: {
+                                mesh.mesh = CreateCube((uint32_t)deserializedEntity);
+                                break;
+                            }
+                        default: {
+                                OE_CORE_ASSERT(false, "No mesh");
+                                break;
+                            }
+                    }
+                }
+
+				auto material_component = entity["MaterialComponent"];
+				if (material_component) {
+					auto& material = deserializedEntity.AddComponent<MaterialComponent>();
+					material.material.albedo = material_component["Albedo"].as<glm::vec4>();
+					material.material.roughness = material_component["Roughness"].as<float>();
+					material.material.metallic = material_component["Metalic"].as<float>();
+					material.material.ambient_strength = material_component["AmbiantStrength"].as<float>();
+					material.material.specular_strength = material_component["SpecularStrength"].as<float>();
+				}
+
+                auto physics_body_component = entity["PhysicsBodyComponent"];
+                if (physics_body_component) {
+                    auto& pbc = deserializedEntity.AddComponent<PhysicsBodyComponent>();
+
+                    pbc.linear_damping = physics_body_component["LinearDamping"].as<float>();
+                    pbc.angular_damping = physics_body_component["AngularDamping"].as<float>();
+                    pbc.gravity_factor = physics_body_component["GravityFactor"].as<float>();
+                    pbc.restitution = physics_body_component["Restitution"].as<float>();
+                    pbc.friction = physics_body_component["Friction"].as<float>();
+
+                    pbc.type = physics_body_component["Type"].as<int>();
+                    pbc.initial_activation_state = physics_body_component["ActivationState"].as<int>();
+                    pbc.layer = physics_body_component["Layer"].as<int>();
+                }
+
+                auto box_shape_component = entity["BoxShapeComponent"];
+                if (box_shape_component) {
+                    auto& bsc = deserializedEntity.AddComponent<BoxShapeComponent>();
+
+                    bsc.size = box_shape_component["Size"].as<glm::vec3>();
+                }
+
+                auto sphere_shape_component = entity["SphereShapeComponent"];
+                if (sphere_shape_component) {
+                    auto& ssc = deserializedEntity.AddComponent<SphereShapeComponent>();
+
+                    ssc.radius = sphere_shape_component["Radius"].as<float>();
+                }
 			}
 		}
 
diff --git a/resources/textures/icons/file.png b/resources/textures/icons/file.png
new file mode 100644
index 0000000..4c885f7
Binary files /dev/null and b/resources/textures/icons/file.png differ
diff --git a/resources/textures/icons/folder2.png b/resources/textures/icons/folder2.png
new file mode 100644
index 0000000..5bfd08a
Binary files /dev/null and b/resources/textures/icons/folder2.png differ
diff --git a/resources/textures/icons/play.png b/resources/textures/icons/play.png
index 274b12a..f9058d9 100644
Binary files a/resources/textures/icons/play.png and b/resources/textures/icons/play.png differ
diff --git a/resources/textures/icons/stop.png b/resources/textures/icons/stop.png
index f8b14b5..ce54396 100644
Binary files a/resources/textures/icons/stop.png and b/resources/textures/icons/stop.png differ
diff --git a/untitled_persp.oes b/untitled_persp.oes
deleted file mode 100644
index 9532713..0000000
--- a/untitled_persp.oes
+++ /dev/null
@@ -1,47 +0,0 @@
-Scene: N/A
-Entities:
-  - Entity: 412741205
-    TagComponent:
-      Tag: square 3
-    TransformComponent:
-      Translation: [-1.49011612e-08, 0.299999774, -0.499999911]
-      Rotation: [-1.57079685, 0, 0]
-      Scale: [0.605000019, 0.60496217, 0.60496217]
-    SpriteRendererComponent:
-      Color: [1, 1, 1, 1]
-  - Entity: 412741205
-    TagComponent:
-      Tag: "square 2 "
-    TransformComponent:
-      Translation: [0, 0, -0.200000003]
-      Rotation: [0, 0, 0]
-      Scale: [0.600000024, 0.600000083, 0.600000024]
-    SpriteRendererComponent:
-      Color: [0.882352948, 0.745098054, 0.376470596, 1]
-  - Entity: 412741205
-    TagComponent:
-      Tag: square
-    TransformComponent:
-      Translation: [0.299827427, -9.68575478e-08, -0.499896437]
-      Rotation: [0, 1.57079637, 0]
-      Scale: [0.6049999, 0.604999959, 0.6049999]
-    SpriteRendererComponent:
-      Color: [0.517647088, 0.0901960805, 1, 1]
-  - Entity: 412741205
-    TagComponent:
-      Tag: camera
-    TransformComponent:
-      Translation: [0, 0, 20.8999996]
-      Rotation: [0, 0, 0]
-      Scale: [1, 1, 1]
-    CameraComponent:
-      Camera:
-        ProjectionType: 0
-        PerspectiveFOV: 45
-        PerspectiveNear: 0.00999999978
-        PerspectiveFar: 1000
-        OrthographicSize: 10
-        OrthographicNear: -1
-        OrthographicFar: 1
-      Primary: true
-      FixedAspectRatio: false
\ No newline at end of file