Counter-Strike Online 2

A team-based first-person shooter. Download the Windows launcher, create an account and join your first match.

Get ready for your first match

From installing the launcher to choosing a server, here’s how to get started.

How to install CSO2 on WindowsDownload the Counter-Strike Online 2 launcher, choose an installation folder, and let it download and verify the game files.
Create a CSO2 account and verify your emailCreate your CSOnline2 account on the website, enter the six-digit email code, and use the same username in the launcher.
How to join your first match in CSO2Open the game from the launcher, choose a server and channel, then join a waiting room and ready up.

Classic bomb defusal and hostage rescue scenarios. Tactical team gameplay.

Fast-paced team deathmatch. Get the most kills to win.

Humans vs zombies survival. Stay alive without getting infected.

Teams compete to win rounds.

Prop hunt style mode. Disguise as objects and survive without being found.

Open world PvP and PvE mode. Explore the city, complete missions.

Counter-Strike Online 2 (CSO2) is a team-based first-person shooter developed by Nexon using Valve’s Source engine.

In Classic mode, two teams plant or defuse a bomb, or rescue hostages, depending on the map. The game guide explains other modes.

What is CSO2?

Counter-Strike Online 2 is a team-based first-person shooter built on the Source engine.

How do I install CSO2?

Get the Windows launcher from the download page, choose an installation folder and wait for it to download the game files.

Can I use my website account to sign in to the game?

After verifying your email, sign in to the launcher with the same username and password.

What if a match stops loading at 10%?

If the lobby opens, check the connection to the match server. The guide explains how to compare networks and read the game log.