Team Fortress 2 is a team-based first-person shooter multiplayer video game developed by Valve Corporation. A sequel to Valve's previous Team Fortress Classic, it was first released as part of the video game compilation The Orange Box on 10 October 2...

Team Fortress 2 is a team-based first-person shooter multiplayer video game developed by Valve Corporation. A sequel to Valve's previous Team Fortress Classic, it was first released as part of the video game compilation The Orange Box on 10 October 2007 for Windows and the Xbox 360. A PlayStation 3 version then followed on 22 November 2007. The game was later released as a standalone package for Windows on 9 April 2008. Team Fortress 2 was distributed online through the Steam system, while retail distribution was handled by Electronic Arts. The development of Team Fortress 2 was led by John Cook and Robin Walker, the designers who originally created the Team Fortress modification for Quake in 1996.

The game was announced in 1998, powered by Valve's GoldSrc engine, but has since been through various concepts and designs. In 1999, the game appeared to be deviating from its predecessors by pursuing a more realistic and militaristic style of gameplay, but the design metamorphosed over its nine-year development period. The final rendition sports cartoon style visuals influenced by the art of J. C. Leyendecker, Dean Cornwell and Norman Rockwell[8] and powered by the Source engine. The game itself revolves around two teams, each with access to nine distinct characters, battling in a variety of game modes set in evil genius environments.

The lack of information or apparent progress for six years of the game's development caused it to be labeled as vaporware, and it was regularly featured in Wired News' annual vaporware list among other ignominies. Upon its release, the game received critical acclaim and several awards, being praised for its graphics, balanced gameplay, comedic value and for its use of full character personalities in a dedicated multiplayer game.