diff --git a/SQCSim-common/world.cpp b/SQCSim-common/world.cpp
index c18c32c..a803e01 100644
--- a/SQCSim-common/world.cpp
+++ b/SQCSim-common/world.cpp
@@ -16,6 +16,9 @@ void World::SetSeed(uint64_t seed) {
 	m_seed = seed;
 }
 
+
+
+
 Chunk* World::ChunkAt(float x, float y, float z) const {
 	int cx = (int)x / CHUNK_SIZE_X;
 	int cz = (int)z / CHUNK_SIZE_Z;
@@ -31,6 +34,24 @@ Chunk* World::ChunkAt(float x, float y, float z) const {
 
 Chunk* World::ChunkAt(const Vector3f& pos) const { return ChunkAt(pos.x, pos.y, pos.z); }
 
+void World::RemoveChunk(int nbReduit)
+{
+	for (int x = 0; x < WORLD_SIZE_X; ++x)
+		for (int y = 0; y < WORLD_SIZE_Y; ++y)
+		{
+			if (x < nbReduit)
+				m_chunks.Remove(x,y);
+			if (y < nbReduit)
+				m_chunks.Remove(x, y);
+			if (y > WORLD_SIZE_Y - nbReduit)
+				m_chunks.Remove(x, y);
+			if (x > WORLD_SIZE_X - nbReduit)
+				m_chunks.Remove(x, y);
+		}
+
+
+}
+
 BlockType World::BlockAt(float x, float y, float z, BlockType defaultBlockType) const {
 	Chunk* c = ChunkAt(x, y, z);
 
diff --git a/SQCSim-common/world.h b/SQCSim-common/world.h
index 8a166af..e9b4840 100644
--- a/SQCSim-common/world.h
+++ b/SQCSim-common/world.h
@@ -28,6 +28,8 @@ public:
 	Chunk* ChunkAt(float x, float y, float z) const;
 	Chunk* ChunkAt(const Vector3f& pos) const;
 
+	void RemoveChunk(int nbReduit);
+
 	BlockType BlockAt(float x, float y, float z, BlockType defaultBlockType = BTYPE_AIR) const;
 	BlockType BlockAt(const Vector3f& pos, BlockType defaultBlockType = BTYPE_AIR) const;
 
diff --git a/SQCSim2021/engine.cpp b/SQCSim2021/engine.cpp
index 6042225..438bcad 100644
--- a/SQCSim2021/engine.cpp
+++ b/SQCSim2021/engine.cpp
@@ -275,6 +275,45 @@ void Engine::DrawMenu()
 	ShowCursor();
 }
 
+void Engine::DrawPause()
+{
+	static const int sTitle = 400;
+	static const int sButton = 225;
+
+	glDisable(GL_LIGHTING);
+
+
+	glDisable(GL_DEPTH_TEST);
+	glDisable(GL_STENCIL_TEST);
+	glMatrixMode(GL_PROJECTION);
+	glPushMatrix();
+	glLoadIdentity();
+	glOrtho(0, Width(), 0, Height(), -1, 1);
+	glMatrixMode(GL_MODELVIEW);
+	glPushMatrix();
+
+	PauseBGTexture.Bind();
+	glLoadIdentity();
+	glBegin(GL_QUADS);
+	glTexCoord2f(0, 0);
+	glVertex2i(0, 0);
+	glTexCoord2f(1, 0);
+	glVertex2i(800, 0);
+	glTexCoord2f(1, 1);
+	glVertex2i(800, 600);
+	glTexCoord2f(0, 1);
+	glVertex2i(0, 600);
+	glEnd();
+
+	glDisable(GL_BLEND);
+	glEnable(GL_DEPTH_TEST);
+	glMatrixMode(GL_PROJECTION);
+	glPopMatrix();
+	glMatrixMode(GL_MODELVIEW);
+	glPopMatrix();
+	ShowCursor();
+}
+
 void Engine::Init() {
 
 
@@ -397,10 +436,12 @@ void Engine::LoadResource() {
 
 	LoadTexture(MenuTitleTexture, TEXTURE_PATH "BrouillonbackgroundMenu.png");
 	LoadTexture(MenuBGTexture, TEXTURE_PATH "BrouillonbackgroundMenu.png");
+	LoadTexture(PauseBGTexture, TEXTURE_PATH "BrouillonbackgroundMenu.png");
 	LoadTexture(SplachScreenTexture, TEXTURE_PATH "sc2.png");
 	LoadTexture(MenuQuitTexture, MENU_ITEM_PATH "BasicQuit.png");
 	LoadTexture(MenuOptionsTexture, MENU_ITEM_PATH "test.png");
 	LoadTexture(MenuStartTexture, MENU_ITEM_PATH "BasicPlay.png");
+
 	TextureAtlas::TextureIndex texDirtIndex = m_textureAtlas.AddTexture(TEXTURE_PATH "metal3.png");
 	TextureAtlas::TextureIndex texIceIndex = m_textureAtlas.AddTexture(TEXTURE_PATH "metal2.png");
 	TextureAtlas::TextureIndex texGrassIndex = m_textureAtlas.AddTexture(TEXTURE_PATH "grass.png");
@@ -890,7 +931,11 @@ void Engine::DrawHud(float elapsedTime, BlockType bloc) {
 	glPushMatrix();
 
 	int timer = GetCountdown(elapsedTime);
-
+	for (int i = 1; i < WORLD_SIZE_X; i++)
+	{
+		if (timer <= COUNTDOWN - m_timerReductionChunk * i)
+			m_world.RemoveChunk(m_nbReductionChunk * i);
+	}
 	if (m_keyK) {
 		SystemNotification(m_messageNotification);
 		m_keyK = false;
@@ -960,6 +1005,8 @@ int Engine::GetFps(float elapsedTime) const { return 1 / elapsedTime; }
 int Engine::GetCountdown(float elapsedTime) {
 	if (m_resetcountdown)
 	{
+		m_nbReductionChunk = 4;
+		m_timerReductionChunk = 30;
 		m_countdown = m_time + COUNTDOWN;
 		m_resetcountdown = false;
 	}
@@ -1088,6 +1135,7 @@ void Engine::Render(float elapsedTime) {
 		m_world.Update(m_bullets, m_player.GetPosition(), m_blockinfo);
 		m_renderer.UpdateMesh(&m_world, m_player.GetPosition(), m_blockinfo);
 
+		
 		if (m_isSkybox) m_skybox.Render(skybox);
 
 		DrawHud(elapsedTime, bloc);
@@ -1177,6 +1225,10 @@ void Engine::Render(float elapsedTime) {
 			DrawMenu();
 		}
 	}
+	else if (m_gamestate == GameState::PAUSE)
+	{
+		DrawPause();
+	}
 	else if (m_gamestate == GameState::QUIT)
 		Stop();
 }
@@ -1204,7 +1256,14 @@ void Engine::KeyPressEvent(unsigned char key) {
 		}
 		break;
 	case 36: // ESC - Quitter
-		m_gamestate = GameState::MAIN_MENU;
+		if (m_gamestate == GameState::PLAY)
+		{
+			m_gamestate = GameState::PAUSE;
+		}
+		else if (m_gamestate == GameState::PAUSE)
+		{
+			m_gamestate = GameState::PLAY;
+		}
 		//Stop();
 		break;
 	case 57: // Space - Sauter
diff --git a/SQCSim2021/engine.h b/SQCSim2021/engine.h
index 49263b3..0f687b7 100644
--- a/SQCSim2021/engine.h
+++ b/SQCSim2021/engine.h
@@ -28,6 +28,7 @@ public:
     Engine();
     virtual ~Engine();
     virtual void DrawMenu();
+    virtual void DrawPause();
     virtual void DrawSplachScreen();
     virtual void Init();
     virtual void DeInit();
@@ -94,13 +95,14 @@ private:
     std::chrono::high_resolution_clock::time_point m_startTime;
 
     //Menu
-    enum class GameState: uint8_t { MAIN_MENU, OPTIONS, QUIT, NEWG, PLAY };
+    enum class GameState: uint8_t { MAIN_MENU, OPTIONS, QUIT, NEWG, PLAY, PAUSE };
     GameState m_gamestate = GameState::MAIN_MENU;
     Texture MenuTitleTexture;
     Texture MenuBGTexture;
     Texture MenuStartTexture;
     Texture MenuQuitTexture;
     Texture MenuOptionsTexture;
+    Texture PauseBGTexture;
     Texture SplachScreenTexture;
 
     float m_scale;
@@ -113,6 +115,8 @@ private:
 
     int m_renderCount = 0;
     int m_countdown = COUNTDOWN;
+    int m_nbReductionChunk = 4;
+    int m_timerReductionChunk = 30;
 
     bool m_damage = false;