



Team Fortress 2 follows a popular trend in recent CGI films, in particular, films recently made by Pixar, such as The Incredibles. The final art style rendition of Team Fortress 2 resembles that of the original Team Fortress and Team Fortress Classic games, and also features a cartoon-like visual style based on the art of Dean Cornwell, J. However, the design continued evolving over the game's nine-year development period and game engine switch. In 1999, the game appeared to be abandoning the art styles of the original Team Fortress Classic by transitioning toward a more realistic and militaristic style of gameplay. The game was first announced in 1998 as a sequel to the original Team Fortress mod for Quake (a first-person shooter video game, developed by id Software), but has since been through various concept and design periods. After several months of closed beta, Team Fortress 2 was finally released for Linux operating systems on February 14, 2013.

The PC and OS X versions of Team Fortress 2 adopted a "Free to Play" model on June 23, 2011, with all revenue being generated from microtransactions in the In-game Store. Following suit, it was released as a standalone title on April 9, 2008, and on June 10, 2010, Team Fortress 2 was released for Mac OS X. A PlayStation 3 version then followed on November 22, 2007. It was first released for Microsoft Windows and Xbox 360 on October 10, 2007. Team Fortress 2 is a team-based multiplayer first-person shooter developed by Valve Software as part of the game bundle The Orange Box.
