Counter-Strike: Global Offensive

Counter-Strike: Global Offensive (CS:GO) is the fourth Counter-Strike series developed by Valve Corporation and Hidden Path Entertainment that will be released on the first quarter of 2012.

Overview
Counter-Strike: Global Offensive is the updated version of Counter-Strike: Source with several new game modes, maps and weapons. The game uses the updated version of Source engine. This game is now still in closed beta.

Other Counter-Strike series

 * 1) Counter-Strike
 * 2) Counter-Strike: Condition Zero
 * 3) Counter-Strike: Source