[antris]

Counter-Strike

(Counter-Strike: Condition Zero)

Counter-Strike: Source

Counter-Strike: Global Offensive

Counter-Strike 2

It's all pretty confusing.

[ceedan]

Counter-Strike 1.6

Condition Zero (1.7)

Source (1.8)

Global Offensive (1.9)

Counter-Strike 2

[iooi]

It makes sense if you think of it like this:

CS - 1.5

CS (Steam) - 1.6

CS: CZ - 1.7

CS: Source - 1.8

CS: GO - 1.9

CS - 2.0