If you don't already have CS:GO, you will have to download the game from Steam by pressing “Install.” Once it's downloaded on Steam, open it and click “Play.” You can now play Counter-Strike 2!

If you have been selected you will receive a notification on the main menu of CS:GO. When you see that invitation select "ENROLL" and Counter-Strike 2 will begin to download.

CS2 Download Size: What to Expect For CS2, the download size is something you don't have to worry about. Unlike other massive open-world games, Counter Strike 2 won't demand that much space in your machine. The estimated basic download size for it roughly rounds up to about 30GB.