Leyendecker, Dean Cornwell, and Norman Rockwell, and uses Valve's Source game engine. The finished Team Fortress 2 has cartoon-like visuals influenced by the art of J.

After Valve released no information for six years, Team Fortress 2 regularly featured in Wired News ' annual vaporware list among other ignominies. Initially, the game had more realistic, militaristic visuals and gameplay, but this changed over the protracted nine years of development. Team Fortress 2 was announced in 1998 under the name Team Fortress 2: Brotherhood of Arms. Development was led by John Cook and Robin Walker, the developers of the original Team Fortress mod. Players join one of two teams, RED and BLU, and choose one of nine character classes to play as in game modes such as capture the flag and king of the hill. It is distributed online through Valve's digital retailer Steam, with Electronic Arts managing all physical or console editions of the game.

It was released as a standalone title for Windows in April 2008, and was updated to support Mac OS X in June 2010 and Linux in February 2013. The game was released in October 2007 as part of The Orange Box for Microsoft Windows and the Xbox 360, and was later ported to the PlayStation 3 in December 2007. It is the sequel to the 1996 Team Fortress mod for Quake and its 1999 remake, Team Fortress Classic. Team Fortress 2 is a multiplayer first-person shooter game developed and published by Valve Corporation.

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