id Software has released Return to Castle Wolfenstein Multiplayer Test 2 for Mac OS X. Developed by Gray Matter Interactive and Nerve Software, Return to Castle Wolfenstein is a 3D first-person shooter that puts players in the center of the Axis and Allied powers in World War II. The test version is primarily designed to test and tweak the game’s networking code, although thousands of players have taken advantage of the free test version to get a taste of the unreleased game. Also available is a command line server, allowing users to run a dedicated Return to Castle Wolfenstein server from their Mac OS X machine.