The official Counter-Strike MMOFPS.
Licensed by Valve.


Free Counter-Strike, really. You searched for it.

Download and play Counter-Strike Online 2 (CSO2). 100% Free, Gratis, Gratuit, Libre.

Enjoy the old favorites from Counter-Strike: Source (CSS) while exploring new features and rewards without spending a single cent!


Do you chase after the classical Counter-Strike action?

Powered by the enhanced Source engine, gameplay remains fast-paced as ever with bunnyhopping!

In Counter-Strike Online 2 (CSO2), wallbangs, radio commands, map layouts and game mechanics remain as solid as ever.


Counter-Strike Online 2 (CSO2) is loaded with contents that leaves you wanting more.

Get your hands on a bunch of weapons and classes such as the Beretta MX4 Storm, MK14 EBR, the M1 Garand as well as the badass Leet.

With plenty of maps and game modes, shooting at people never gets old!