While GreenLuma itself is generally considered safe from VAC (Valve Anti-Cheat) bans in single-player games, using it in multiplayer games with active anti-cheat is highly risky and can lead to account bans.
In the late 2000s and early 2010s, Steam was rapidly expanding, but its protection system——had a specific design philosophy: it prioritized convenience for developers. This created a loophole. If a user could "convince" the Steam client that they owned a game they hadn't purchased, the client would often just download and run it. 2. The Birth of GreenLuma greenluma cs.rin.ru