Steam Community :: Guide :: How to mod GTAV. Includes: Graphics, replacing cars, adding game content via scripts, LSPDFR and much more. (UPDATED) 10/10/2016
TwoPlayerMod [.NET] Beta - GTA5-Mods.com
Mod opens GTA 5's story mode to co-op players | VG247
Mod DB - This mod adds split-screen multiplayer to Grand... | Facebook
TwoPlayerMod [.NET] - GTA5-Mods.com
GTA Vice City 2 Players Demonstration video - Mod DB