GTA III] Extended Interiors Universe - Mod by M. Osborn

Steam Community :: Guide :: Grand Theft Auto III: Definitive Edition

GTA III Refresh Mod v3.1 file - ModDB

Grand Theft Auto III RealGTA3 mod

ModDB on X: The final version of the total conversion mod for Grand Theft Auto III which makes the whole game more similar to GTA IV is out now /

V1.0.0 file - GTA III 4.0 mod for Grand Theft Auto III - Mod DB

If you haven't had the chance, try out the first person mods for the trilogy. The sense of speed while driving is absolutely amazing. : r/GTA

GTA Gaming Archive

GTA III Open Tunnels Mod - Grand Theft Auto III - GameFront

Steam Community :: Guide :: Updated Classic: GTA 3 [ENG]

GTA3 HD Vehicles Tri-Pack III v.1.1 for GTA San Andreas