Homeworld
A fully three dimensional real-time strategy game set in space. Released in 1999 by Sierra Studios and Relic Entertainment. It has a stand alone expansion called Homeworld: Cataclysm and a sequal is in production and is slated to be released in the Summer of 2003.
I just finished the final level of Homeworld.
Homeworld
A better Sierra game than Half-Life.
Homeworld rules!