diff --git a/GL/flush.c b/GL/flush.c
index e07c3a1..b6393a2 100644
--- a/GL/flush.c
+++ b/GL/flush.c
@@ -103,6 +103,9 @@ void APIENTRY glKosShutdown() {
     aligned_vector_clear(&OP_LIST.vector);
     aligned_vector_clear(&PT_LIST.vector);
     aligned_vector_clear(&TR_LIST.vector);
+
+    ShutdownGPU();
+    _initialized = false;
 }
 
 void APIENTRY glKosInit() {
diff --git a/GL/platforms/sh4.c b/GL/platforms/sh4.c
index 179f22d..21f5bde 100644
--- a/GL/platforms/sh4.c
+++ b/GL/platforms/sh4.c
@@ -53,6 +53,10 @@ void InitGPU(_Bool autosort, _Bool fsaa) {
 #endif
 }
 
+void ShutdownGPU() {
+    pvr_shutdown();
+}
+
 GL_FORCE_INLINE float _glFastInvert(float x) {
     return (1.0f / __builtin_sqrtf(x * x));
 }
diff --git a/GL/platforms/sh4.h b/GL/platforms/sh4.h
index c91b34c..306db8a 100644
--- a/GL/platforms/sh4.h
+++ b/GL/platforms/sh4.h
@@ -160,6 +160,8 @@ GL_FORCE_INLINE void TransformVertex(float x, float y, float z, float w, float*
 
 void InitGPU(_Bool autosort, _Bool fsaa);
 
+void ShutdownGPU();
+
 static inline size_t GPUMemoryAvailable() {
     return pvr_mem_available();
 }
diff --git a/GL/platforms/software.c b/GL/platforms/software.c
index 57940b6..99943cb 100644
--- a/GL/platforms/software.c
+++ b/GL/platforms/software.c
@@ -54,6 +54,22 @@ void InitGPU(_Bool autosort, _Bool fsaa) {
     aligned_vector_init(&vbuffer, sizeof(SDL_Vertex));
 }
 
+void ShutdownGPU() {
+    aligned_vector_clear(&vbuffer);
+
+    if (RENDERER) {
+        SDL_DestroyRenderer(RENDERER);
+        RENDERER = NULL;
+    }
+
+    if (WINDOW) {
+        SDL_DestroyWindow(WINDOW);
+        WINDOW = NULL;
+    }
+
+    SDL_Quit();
+}
+
 void SceneBegin() {
     SDL_SetRenderDrawColor(RENDERER, BACKGROUND_COLOR[0], BACKGROUND_COLOR[1], BACKGROUND_COLOR[2], 0);
     SDL_RenderClear(RENDERER);
diff --git a/GL/platforms/software.h b/GL/platforms/software.h
index 08cf4ed..e407e9d 100644
--- a/GL/platforms/software.h
+++ b/GL/platforms/software.h
@@ -54,6 +54,7 @@ static inline void TransformNormalNoMod(const float* xIn, float* xOut) {
 void TransformVertex(float x, float y, float z, float w, float* oxyz, float* ow);
 
 void InitGPU(_Bool autosort, _Bool fsaa);
+void ShutdownGPU();
 
 enum GPUPaletteFormat;