It's been almost 20 years since the release of the original Grand Theft Auto and to satisfy people's lust until a true 3D conversion is made, I have made a texture pack for GTA3.

Trailer:

https://youtu.be/9Ff4Pb3NRh4

Changes

Version 1.0:

 Roads - Replaced with converted textures from the original Grand Theft Auto. (Top-Down View is recommended for full nostalgia)
 Grass - Converted from GTA1.
 Water - Converted from GTA1 with particle effects
 Pavements/Side-walks - The classic yellow brick texture from GTA1
 Player - Low detail skin with yellow jumper and blue trousers.
 Weapon Icons - Original icons converted from GTA1 with some others made in the same style.
 Radar - Based off the map that came with the original game, incl. map icons
 HUD - Powerhouse font with R* stars.
 Time-Cycle - Permanently sunny with a bright blue sky.
 Fonts - Pricedown has been replaced with Powerhouse (the titular GTA1 font) and Clarendon has taken place of Geneva.
 Menus - Classic GTA1 menu background with custom logo
 Intros - DMA intro with custom titles.
 Splash Screens - Artwork from GTA1 showing various characters.


Version 1.1:

 - More Detailed Roads (Road Markings)
 - Rocks and Cliffs now have GTA1 textures
 - Calahan Bridge and the Staunton Lift Bridge now use GTA1 Textures
 - Cochrane Dam now uses GTA1 textures
 - Trains now use GTA1 Textures
 - Higher Quality Grass Textures
 - GTA1 Fire Particle Effects
 - Trees now use GTA1 textures
 - Updated Weapon Icons
 - Updated Intro
 - Better Player Skin
 - Menus now use higher quality background
 - Easter Eggs hidden in a couple of places


Credit:
GTAForums
Reference Guide - http://gta.mendelsohn.de/
Capcom

OnlineConvert.com
GXT Editor V1.3
ViceTXD
IMGTool
GTA1 Modding Tools
Microsoft Word
Microsoft Movie Maker

and of course... DMA Design (Rockstar North)