Counter-Strike Online 2 (CSO2) is a free Counter Strike MMOFPS licensed by Valve Software to Nexon Corporation Limited, released in 2013.

Counter Strike Online 2 (CSO2) guide to download and play for free in just a few steps!

Step-by-step tutorial to download the Counter Strike Online 2 (CSO2) English version and start playing right away!

As in Counter-Strike, there are both Terrorist and Counter-Terrorist factions in Counter-Strike Online 2. Whose side are you on?

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The Counter Strike Online 2 (CSO2) game basics guide webpage walks you through the core aspects of the game.

Counter Strike Online 2 (CSO2) offers a variety of interesting weapons to its players. Pistols, SMGs, knives, come check them out now!

Introducing all Terrorist characters in Counter-Strike Online 2.

This guide walks you through the whole Counter-Strike Online 2 (CSO2) user interface.

Introducing all Counter-Terrorist characters in Counter-Strike Online 2.