Red Eclipse is a free and open source multiplayer first-person-shooter (FPS) game that has similar fast-paced action gameplay like Quake III Arena and Unreal Tournament. The game is heavily multiplayer based but can be played offline with bots as enemies.
Red Eclipse has six different unique game modes, these include: Campaign, Deathmatch, Capture the Flag, Defend the Flag, Bomber and Time-Trial. The player has also a large selection of weapons such as: pistol, grenades, sword, shotgun, submachine gun, flamethrower, plasma gun, automatic rifle, and rocket launcher.
Intel powered Mac
Mac OS X 10.4 or higher
OpenGL compliant graphics card
Free download at www.redeclipse.net