10.01.2014, 17:16
Probably something a fan has done. To be honest, I don't see anything in plus here, would it ever be added to Steam. I mean, SA-MP is a 11.5Mb program that uses GTA:San Andreas to run. The game itself (GTA:SA) on Steam is fine, since you can play that, but putting SA-MP on there doesn't really improve anything in my point of view.