I've had it for a while, there's a Debian package for it, so it's easy to install. I had to play it for an hour or two before I finally got a hang of the controls. On my machine, the controls are a little jerky, though.
Egoboo is a really fun game and the graphics are awesome. I'm not a very good gamer, so for me, the game is REALLY HARD. It seems like I am seriously outnumbered. It would probably be easier if we could have a network game and make teams to fight against the bad guys.
Good work, Egoboo crew! Thanks for the awesome game.