when was tf2 released

Team Fortress 2 (TF2) was released on October 10, 2007. It was initially part of The Orange Box, a game compilation that included other Valve titles, and was made available for Microsoft Windows and Xbox 360 on that date. The PlayStation 3 version followed later in December 2007. TF2 was subsequently released as a standalone game for Windows in April 2008 and later for macOS and Linux in June 2010 and February 2013, respectively.