Despite no official tools to support it, Grand Theft Auto 4 had one of the best modding scenes around, adding new cars and improved textures, rocket punches and gravity guns, letting you play as a police officer or Superman, and much more. GTAV is similarly devoid of official modding support, but it seems likely that people will again prove undeterred. First up: mod tool OpenIV has been updated to support Grand Theft Auto V.
OpenIV is a tool for browsing and editing base files for GTAIV, Max Payne and now GTAV. (Probably they now regret calling it OpenIV). It's an important part of being able to mod the game, both for mod creators and people looking to install mods. While the GTAV support only includes the ability to browse and open files so far, it seems likely that the ability to edit those files is just a short while away.
Doing this stuff in GTAIV meant working around Games for Windows Live, essentially stripping it out of the base game in order to stop it interfering. That's obviously not a problem this time around, but instead players will risk running afoul of rules concerning GTA Online. That's a larger problem this time since GTA Online is something you might actually want to play. For now, tread lightly.
Thanks, PC Gamer.