You know cedega is an emulator, and it is not perfect.
A lot of games crashes and doesn't work in cedega... Try to install it in windows (if you have it). And then try to run the game using cedega, then pray, and with luck you can play.
The only game i have that i can play with cedega is Praetorians, (but with a lot of problems because i can not see the mouse
)
