AssaultCube, formerly ActionCube, is a free first-person-shooter based on the game Cube. Set in a realistic looking environment, while gameplay stays fast and arcade. This game is all about team oriented multiplayer fun.
PFF...
WOW!
My first PC fps.
Open source, very nice.
Great games, I remember when I tried to do some mods: TOO EASY.
More mods by me comming soon!
Really Great game, and its easy to put in mods. So if you don't like the guns in the game you can easily get a gun mod. (Don't worry, there's A LOT of gun mods.)
This was the first FPS game I've ever played. It's Great!