diff --git a/Core/Core/CoreInstance.cpp b/Core/Core/CoreInstance.cpp
index b3799e0..a9a72fb 100644
--- a/Core/Core/CoreInstance.cpp
+++ b/Core/Core/CoreInstance.cpp
@@ -8,7 +8,6 @@
 #include <iostream>
 #include <thread>
 
-#include "RenderEngine.h"
 #include "Game/GameInstance.h"
 #include "Log/Log.h"
 #include "Game/SaveMap/SaveMap.h"
@@ -55,11 +54,19 @@ CoreInstance::CoreInstance()
 
 	main_config_.load(std::make_shared<SaveMap>(load_main_config));
 
-	render_engine_ = new RenderEngine();
-
-	 game_ = GameFactory(*this);
-	 if (game_ == nullptr)
-	 	throw std::runtime_error("Fail create game instance!");
+	if (glfwInit() == GLFW_FALSE)
+		throw std::runtime_error("Fail init glfw");
+	window_ = glfwCreateWindow(800, 600, main_config_.game_name.c_str(), nullptr, nullptr);
+	if (window_ == nullptr)
+	{
+		glfwTerminate();
+		throw std::runtime_error("Fail create window");
+	}
+	render_engine_ = new RenderEngine(window_);
+	
+	game_ = GameFactory(*this);
+	if (game_ == nullptr)
+		throw std::runtime_error("Fail create game instance!");
 }
 
 CoreInstance::~CoreInstance()
@@ -99,7 +106,7 @@ void CoreInstance::start()
 	
 	std::thread game_thread(&GameInstance::start, game_);
 	render_engine_->start();
-	game_->quit();
+	game_->stop();
 	game_thread.join();
 }
 
diff --git a/Core/Core/CoreInstance.h b/Core/Core/CoreInstance.h
index 7fb8f03..410c422 100644
--- a/Core/Core/CoreInstance.h
+++ b/Core/Core/CoreInstance.h
@@ -5,6 +5,7 @@
 #include <memory>
 #include <vector>
 
+#include "RenderEngine.h"
 #include "Game/SaveMap/ISave.h"
 #include "Core/CoreCallBacks.h"
 
@@ -25,7 +26,7 @@ class CoreInstance {
 		std::vector<std::string> modules_names;
 
 		double min_memory_size = -1;
-		int min_CPU_count = -1;
+		long long min_CPU_count = -1;
 		
 		std::shared_ptr<SaveMap> save() override;
 		void load(std::shared_ptr<SaveMap> save) override;
@@ -39,6 +40,7 @@ class CoreInstance {
 	double memorySize_;
 	std::list<Module> modules_;
 
+	GLFWwindow* window_ = nullptr;
 	RenderEngine* render_engine_;
 	GameInstance* game_;
 	
@@ -54,11 +56,6 @@ public:
 	
 	void start();
 	void quit();
-
-	/**
-	 * This method quit game
-	 * Async
-	 */
 	
 	int getCountCPU() const { return countCPU_; }
 	double getMemorySize() const { return memorySize_; }
diff --git a/Core/Core/RenderEngine.cpp b/Core/Core/RenderEngine.cpp
index 196df2f..5610168 100644
--- a/Core/Core/RenderEngine.cpp
+++ b/Core/Core/RenderEngine.cpp
@@ -42,21 +42,11 @@ std::vector<const char*> RenderEngine::get_required_extensions()
     return extensions;
 }
 
-RenderEngine::RenderEngine() : window(nullptr)
+RenderEngine::RenderEngine(GLFWwindow* window) : window_(window)
 #ifdef _DEBUG
 , debug_messenger_(nullptr)
 #endif
 {
-    if (glfwInit() == GLFW_FALSE)
-        throw std::runtime_error("Fail init glfw");
-
-    window = glfwCreateWindow(640, 480, "UwU Engine", nullptr, nullptr);
-    if (!window)
-    {
-        glfwTerminate();
-        throw std::runtime_error("Fail create window");
-    }
-    
     {
         std::vector<const char*> extensions = get_required_extensions();
         std::vector<const char*> layers = {
@@ -121,22 +111,22 @@ RenderEngine::~RenderEngine()
     if (instance_ != nullptr)
         vkDestroyInstance(instance_, nullptr);
     
-    if (window != nullptr)
-        glfwDestroyWindow(window);
+    if (window_ != nullptr)
+        glfwDestroyWindow(window_);
     glfwTerminate();
 }
 
 void RenderEngine::start()
 {
-    while (!glfwWindowShouldClose(window))
+    while (!glfwWindowShouldClose(window_))
     {
-        glfwSwapBuffers(window);
+        glfwSwapBuffers(window_);
         glfwPollEvents();
     }
 }
 
 void RenderEngine::stop_render()
 {
-    if (window != nullptr && !glfwWindowShouldClose(window))
-        glfwSetWindowShouldClose(window, true);
+    if (window_ != nullptr && !glfwWindowShouldClose(window_))
+        glfwSetWindowShouldClose(window_, true);
 }
diff --git a/Core/Core/RenderEngine.h b/Core/Core/RenderEngine.h
index c9202fc..f87929e 100644
--- a/Core/Core/RenderEngine.h
+++ b/Core/Core/RenderEngine.h
@@ -8,7 +8,7 @@
 
 class RenderEngine
 {
-    GLFWwindow* window;
+    GLFWwindow* window_;
     VkInstance instance_;
 
 #ifdef _DEBUG
@@ -19,7 +19,7 @@ class RenderEngine
     static std::vector<const char*> get_required_extensions();
     
 public:
-    RenderEngine();
+    RenderEngine(GLFWwindow* window);
     ~RenderEngine();
 
     void start();
diff --git a/Core/Game/GameInstance.cpp b/Core/Game/GameInstance.cpp
index 066c7ef..43c5f37 100644
--- a/Core/Game/GameInstance.cpp
+++ b/Core/Game/GameInstance.cpp
@@ -63,8 +63,13 @@ void GameInstance::start()
 	}
 }
 
-void GameInstance::quit()
+void GameInstance::stop()
 {
 	is_running = false;
+}
+
+void GameInstance::quit()
+{
+	stop();
 	core.quit();
 }
diff --git a/Core/Game/GameInstance.h b/Core/Game/GameInstance.h
index 6fc0fc3..3da336a 100644
--- a/Core/Game/GameInstance.h
+++ b/Core/Game/GameInstance.h
@@ -16,11 +16,8 @@ class GameInstance
 
 	std::atomic<bool> is_running = true;
 
-	// Create a window
-	// Render
-	// Pull events
 	void start();
-
+	void stop();
 public:
 	void quit();