Counter-Strike: Global Offensive (abbreviated as CS:GO or CSGO) is an online first-person shooter developed by Hidden Path Entertainment and Valve Corporation. It is the fourth game in the main Counter-Strike franchise.
Counter-Strike: Global Offensive was released on August 21, 2012, and made available for Microsoft Windows and OS X on Steam, Xbox Live Arcade, and a US-only version on PlayStation Network. The Linux version was released in September 2014. It features classic content, such as revamped versions of classic maps, as well as brand new maps, characters and game modes. Cross-platform multiplayer was planned between Windows, OS X, Linux, and PSN players, but was ultimately limited to Windows, OS X, and Linux because of the differences in update-frequency between systems. The PSN version offers three input control methods, which include using either the DualShock 3 controller, PlayStation Move or USB keyboard/mouse.