4. Download and install FiveM. It's the most popular mod for GTA RP, and allows you to play multiplayer GTA 5 on custom dedicated servers. The mod won't actually alter your copy of GTA 5 ...

FiveM is a mod client for GTA 5 Legacy PC that hosts countless RolePlaying (RP) servers. Players can join these servers to experience a unique style of gameplay in an unofficial multiplayer ...