In 2012, Valve tried to breathe new life into the
franchise by
releasing an update called
Counter-Strike: Global Offensive, or CS: GO.
Despite the massive success of games like
Counter-Strike: Global Offensive and DOTA 2 which came out in 2012 and 2013 receptively, the last new game or
franchise released by Valve was the original Left 4 Dead in 2008.