| Feature | IPC Repack (2008-2012) | Official Rockstar/Steam | Modern Repacks (e.g., FitGirl) | | :--- | :--- | :--- | :--- | | | ~800MB - 1.5GB | 4.7GB (Download) | 2.5GB - 3GB (Selective Download) | | Legality | Piracy (Unauthorized) | Legal (Paid) | Piracy (Unauthorized) | | Malware Risk | High (Unverified sources) | None | Low (Reputable scene groups) | | Mod Compatibility | Poor (Missing files) | Excellent (Mod loaders work) | Good | | Windows 11 Ready | No (Requires extensive fixes) | Yes (with patch) | Yes (Packaged with fixes) |