It was originally a mod for Quake 3 Arena, but turned into its own standalone game. located at
http://www.tremulous.net/ (top-right corner, get tremulous)
Deathmatch style game. Its really addicting, only 99.5 MB. Humans versus Aliens. hummies have long-range weapons, are kinda slow, and only have 100 health. Aliens start off at 25 health and tiny, but fast, health regeneration, which can grow into larger aliens with more health and more damage, but they only melee except certain aliens that have ranged abilities. They can wallwalk. Super fun. At least try it. pirate
Xbox 360 vs PS3 vs Wii [Guild]