recommend some pc game(s)

[cloud1161]

what are some good pc exclusive games?  ive only played a handful of pc games like age of empires and empire earth.  i would like to get into pc gaming if i could.  im thinking about getting the new starcraft and/or newest civilization game.  any genre will do, but i mostly like action/adventure, rpg, platformer, and the empire earth type games (not sure of the proper genre name).