Any other online Grand Theft Auto service is unauthorized and your use would violate the license for your software. There are only two authorized Grand Theft Auto online services – the Rockstar Games’ hosted Grand Theft Auto IV multiplayer feature and Grand Theft Auto V’s Grand Theft Auto Online. Will I get in trouble for playing on or hosting one of these servers? I found an unofficial GTA multiplayer server. Ok so FiveM is where you can join servers so it's fine to use mods on them ? Just google FiveM and you'll get to the website, they got all kinds of servers, including drifting ones. Originally posted by DFS JakTheRipper:Most likely it's on FiveM, a multiplayer mod for GTA V.