BZFlag is an Open Source OpenGL multiplayer multiplatform Battle Zone capture the Flag game. At its heart, the game is a 3D first person tank simulation where opposing teams battle for dominance. The game was originally written for SGI computers running Irix, but now runs and is actively maintained on Windows, Linux, Mac OS X, and other platforms.
Note: Now requires OS X 10.7 or later running on a 64-bit Intel processor.
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