It took almost 20 years, but Team Fortress 2, the team-based FPS that changed a great many lives when it debuted in 2007, now has an SDK that Valve says will enable creators "to build completely ...

Valve told ZDNet today that it's safe to play games like Counter-Strike: Global Offensive and Team Fortress 2 even after their source code leaked online today on 4chan and torrent sites.