What are some games that work on PC and Mac?

Because I have both in two different places, I want a game for them, and I don't wanna have to buy two copies of one game.

BTW: I already know Blizzard games do, and I already have the ones I'll ever want.What are some games that work on PC and Mac?
World of Warcraft..if you have any interest in MMO's.What are some games that work on PC and Mac?
[QUOTE=''NathanHawkins'']World of Warcraft..if you have any interest in MMO's.[/QUOTE]

:| That's a blizzard game.
Anyone?
Battle for WesnothEscape VelocityUplinkDarwiniaUnreal 2004
halo 1 works for PC and MAc i believe
Conquest: Frontier Wars. It's an O.K RTS and i'm 80% sure it's for Mac and PC.

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