Counter Strike Condition Zero Portable [2021] -

Condition Zero (CZ) is unique in the franchise because it focuses heavily on the single-player experience while retaining the classic multiplayer mechanics of Counter-Strike 1.6 . Counter-Strike: Condition Zero - Codex Gamicus

Because the portable version bypasses Steam authentication checks, it will gladly accept any player on the same local network, regardless of whether they have a legitimate CD key. Counter Strike Condition Zero Portable