This game does not work reliably on Windows 7. It does work, but crashes after a bit. For this reason, I am dual-booted on XP and Windows 7. The game is really cool lol. Not the best graphics or realism, but its free (!!) and open-source (!!!!). For a game of its origin, it is excellent. I made a size 16 map and made the tallest tower it would let me then put a spawn point there. Was funny all the bots falling from the sky like rain!