The leak contains code from older versions of CS:GO and another Valve game, Team Fortress 2. Fans are freaking out.

Someone posted some old source code for 'Counter-Strike: Global Offensive,' but according to Valve players shouldn't be alarmed.

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. The leak ...