Counter-Strike Online

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Counter-Strike Online
Developer(s)	Nexon
Publisher(s)	Nexon
Series	Counter-Strike
Engine	GoldSrc (Online) Source (Online 2)
Platform(s)	Microsoft Windows
Release	Online TW: July 24, 2008 Online 2 AS: December 2013
Genre(s)	Tactical first-person shooter
Mode(s)	Multiplayer

Counter-Strike Online (CSO) is a tactical first-person shooter video game, targeted towards Asia's gaming market released in 2008. It is based on Counter-Strike and was developed by Nexon with oversight from license-holder Valve. It uses a micropayment model that is managed by a custom version of Steam.^[1]