diff --git a/src/program.c b/src/program.c
index a6431e8..c6dd788 100644
--- a/src/program.c
+++ b/src/program.c
@@ -1,5 +1,6 @@
 #include "program.h"
 #include "camera.h"
+#include "physics_world.h"
 #include "sprite.h"
 #include "time.h"
 #include "assets.h"
@@ -53,6 +54,7 @@ int program_run(const struct ProgramSettings* settings) {
     assets_init();
     camera_init();
     input_init();
+    physics_world_init();
 
     LOG_INFO("settings->on_play");
     settings->on_play();
@@ -72,6 +74,7 @@ int program_run(const struct ProgramSettings* settings) {
 
         settings->on_tick();
         settings->on_draw();
+        physics_world_tick();
     }
 
     LOG_ERROR("Failed to exit");
@@ -82,6 +85,7 @@ void program_quit() {
     assets_clean();
     render_clean();
     input_clean();
+    physics_world_clean();
     SDL_DestroyWindow(g_window);
     SDL_Quit();
     exit(0);