just bought an imac and need help!

[scottie]

If you add your games to your profile it will make threads like this much easier.

But the Mac has

CoD games
Original halo (was meant to be Mac exclusive :P)
Blizzard games
Civilization series
Spore
Unreal Tournament 2004

Infact, just look here
http://en.wikipedia.org/wiki/List_of_Macintosh_games