Wolfenstein: Enemy Territory is a free multiplayer first person shooter (FPS) developed by Splash Damage and id Software. The game is based on Return to Castle Wolfenstein but with multiplayer aspects. Enemy Territory is set in World War 2 and features 2 sides: allies and axis, both have 5 different character classes with unique combat abilities.
Mac OS X 10.4 or higher
Intel powered Mac
500MB hard disk space
Free download at splashdamage.com