Team Fortress 2

Team Fortress 2 is a 2007 multiplayer first-person shooter game developed and published by Valve Corporation. It is the sequel to the 1996 Team Fortress mod for Quake and its 1999 remake, Team Fortress Classic. It was released in October 2007 as part of The Orange Box for Windows and the Xbox 360, and was ported to the PlayStation 3 in December 2007. It was released as a standalone game for Windows in April 2008, and updated to support macOS in June 2010 and Linux in February 2013. It was made free-to-play in June 2011, and is distributed online through Valve's digital retailer, Steam.

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. Its development was led by John Cook and Robin Walker, the developers of the original Team Fortress mod. Team Fortress 2 was announced in 1998 under the name Team Fortress 2: Brotherhood of Arms. Initially, it had more realistic, militaristic visuals and gameplay, but this changed over the protracted nine years of development. After Valve released no information for six years, Team Fortress 2 regularly featured in Wired News's annual vaporware list. Finally released on Valve's game engine, Source, in 2007, Team Fortress 2 preserved much of the core class-based gameplay of its predecessors while featuring an overhauled, cartoonish visual style influenced by the works of J. C. Leyendecker, Dean Cornwell, and Norman Rockwell, alongside an increased focus on the visual and verbal characterization of its playable classes and what the developers have described as a 1960s spy film aesthetic.