diff -ruN a/main.py b/main.py
--- a/main.py	1969-12-31 21:00:00.000000000 -0300
+++ b/main.py	2026-11-04 23:27:39.232396677 -0300
@@ -0,0 +1,11 @@
+import pygame
+import asyncio
+import os
+import sys
+
+mainpath = os.path.abspath(os.path.dirname(__file__))
+sys.path.append(mainpath)
+sys.path.append(os.path.join(mainpath, "src"))
+import dp_main
+
+asyncio.run(dp_main.main(mainpath))
diff -ruN a/run_game.py b/run_game.py
--- a/run_game.py	2026-11-04 23:27:13.674652980 -0300
+++ b/run_game.py	1969-12-31 21:00:00.000000000 -0300
@@ -1,13 +0,0 @@
-#!/usr/bin/python
-
-# run_game.py: run the game from here
-
-import sys, os
-
-mainpath = os.path.abspath(os.path.dirname(sys.argv[0]))
-sys.path.append(mainpath)
-sys.path.append(os.path.join(mainpath,'src'))
-
-import main
-
-main.main(mainpath)
diff -ruN a/src/dp_main.py b/src/dp_main.py
--- a/src/dp_main.py	1969-12-31 21:00:00.000000000 -0300
+++ b/src/dp_main.py	2026-11-04 23:27:39.227947327 -0300
@@ -0,0 +1,53 @@
+#!/usr/bin/python
+
+# main.py
+
+import os
+
+import pygame
+from pygame.locals import *
+from gamedirector import *
+
+import resources
+import titles
+import cutscene
+import game
+
+# Start
+async def main(mainpath):
+
+    # Initialise pygame
+    pygame.init()
+    pygame.mixer.init()
+        
+    # start up director
+    framerate = 30
+    window_size = (800,600)
+    window_title = 'Dark Physics'
+    dir = GameDirector(window_title, window_size, framerate)
+    
+    resources.init(mainpath, window_size)
+    
+    # Scenes
+    titlescreen = titles.TitleScreen(dir, window_size)
+    dir.addscene('titlescreen', titlescreen)
+    
+    cutscenes = cutscene.CutScene(dir, window_size)
+    dir.addscene('cutscene', cutscenes)
+    
+    maingame = game.MainGame(dir, window_size)
+    dir.addscene('maingame', maingame)
+    
+    scuff = game.ScuffleScene(dir, window_size)
+    dir.addscene('scuff', scuff)
+    
+    # Start it up
+    dir.change_scene('titlescreen', [])
+    #dir.change_scene('maingame', ['LT001'])
+    #dir.change_scene('maingame', ['seminar1'])
+    #dir.change_scene('cutscene', ['final'])
+    #dir.change_scene('scuff', [])
+    await dir.loop()
+    
+    
+    
\ No newline at end of file
diff -ruN a/src/gamedirector.py b/src/gamedirector.py
--- a/src/gamedirector.py	2026-11-04 23:27:13.818536054 -0300
+++ b/src/gamedirector.py	2026-11-04 23:27:39.210279926 -0300
@@ -2,6 +2,8 @@
 
 # gamedirector.py: director/scene structure
 
+import asyncio
+import time
 import pygame
 from pygame.locals import *
 
@@ -20,10 +22,14 @@
         
         self.frame = 0
     
-    def loop(self):
-        
+    async def loop(self):
+        last = time.time()
         while not self.quit_flag:
-            self.time = self.clock.tick(self.fps)
+            # frame limiter for the browser: the page needs control back every frame
+            await asyncio.sleep(max(0.0, 1.0 / self.fps - (time.time() - last)))
+            now = time.time()
+            self.time = max(1, int((now - last) * 1000))
+            last = now
             self.frame = self.frame + 1
             
             # Get quit events
@@ -47,7 +53,7 @@
     
     def change_scene(self, scenename, switchtoargs):
         if scenename is None:
-            self.quit()
+            pass  # the web page has nowhere to quit to
         else:
             self.scene = self.scenelist[scenename]
             self.scene.on_switchto(switchtoargs)
diff -ruN a/src/main.py b/src/main.py
--- a/src/main.py	2026-11-04 23:27:13.822099201 -0300
+++ b/src/main.py	1969-12-31 21:00:00.000000000 -0300
@@ -1,53 +0,0 @@
-#!/usr/bin/python
-
-# main.py
-
-import os
-
-import pygame
-from pygame.locals import *
-from gamedirector import *
-
-import resources
-import titles
-import cutscene
-import game
-
-# Start
-def main(mainpath):
-
-    # Initialise pygame
-    pygame.init()
-    pygame.mixer.init()
-        
-    # start up director
-    framerate = 30
-    window_size = (800,600)
-    window_title = 'Dark Physics'
-    dir = GameDirector(window_title, window_size, framerate)
-    
-    resources.init(mainpath, window_size)
-    
-    # Scenes
-    titlescreen = titles.TitleScreen(dir, window_size)
-    dir.addscene('titlescreen', titlescreen)
-    
-    cutscenes = cutscene.CutScene(dir, window_size)
-    dir.addscene('cutscene', cutscenes)
-    
-    maingame = game.MainGame(dir, window_size)
-    dir.addscene('maingame', maingame)
-    
-    scuff = game.ScuffleScene(dir, window_size)
-    dir.addscene('scuff', scuff)
-    
-    # Start it up
-    dir.change_scene('titlescreen', [])
-    #dir.change_scene('maingame', ['LT001'])
-    #dir.change_scene('maingame', ['seminar1'])
-    #dir.change_scene('cutscene', ['final'])
-    #dir.change_scene('scuff', [])
-    dir.loop()
-    
-    
-    
\ No newline at end of file