The Android modding community is vibrant. Popular mods like "GTA 3 Ultimate Textures" or "Mobile Graphics Enabler" replace the stock GTA3.img with a custom version containing high-definition vehicles, realistic road textures, and improved character models.
Open your file manager and navigate to: Internal Storage > Android > data > com.rockstargames.gtaiii > files > GTAIII Gta3.img File Download For Android
If you don’t see com.rockstargames.gtaiii , you may have an older version or a different publisher. Look for com.rockstar.gta3 or check Android/obb (although the .img is rarely in OBB). The Android modding community is vibrant