Like Sims or, COD or some other good games?
Not sure if you can download this game but I play it all the time Try out virtualdrumming.com - it supports both Windows and Mac
Smack Solitaire The Mirror Mysteries Elixir of Immortality Spandex Force THEY R SOME GOOD GAMES FOR MAC
half-life 2. infact buy the orange box ;)
Download the application Steam