Installation often takes 45–90 minutes on a period-appropriate Core 2 Duo machine—longer than it would take to download the full 15GB game on broadband.
Some repackers create a version of GTA IV: gta iv compressed 700mb pc
After this process, the game becomes a "playable" but visually and audibly broken shell of Liberty City. deselect during installation:
Downloading a "highly compressed" 700MB version of Grand Theft Auto IV (GTA IV) gta iv compressed 700mb pc
You can compress your own legit copy of GTA IV using (Windows 10/11 built-in compression) or Compactor .
If using a legitimate repack (e.g., from FitGirl), deselect during installation: