--- a/towercraft.py
+++ b/towercraft.py
@@ -155,7 +155,9 @@
         self.airplane = Animation(SCREEN_WIDTH, calcFloorPos(20) + 4, 16, 11, AIRPLANE_SPRITES, -0.5, 2)
         self.ufo = Animation(SCREEN_WIDTH, calcFloorPos(40) + 4, 16, 8, UFO_SPRITES, -1, 2)
 
-        pyxel.init(SCREEN_WIDTH, SCREEN_HEIGHT, 'Towercraft', capture_sec=120)
+        # FredyGames: on the web, the key that quits the game (Esc) only freezes the page, so it is turned off.
+        pyxel.init(SCREEN_WIDTH, SCREEN_HEIGHT, 'Towercraft', capture_sec=120,
+                   quit_key=pyxel.KEY_NONE)
         pyxel.colors.from_list([
             0x1a1c2b,
             0x5d265d,