Scientific data compression has limits. You cannot compress a high-quality game with textures, audio, and 3D models into a tiny fraction of its size without losing functionality. While some legitimate repack groups (like FitGirl) offer compressed installers, a file claiming to be an entire game under 100MB is a massive red flag.
The original developer, Innerloop Studios, closed its doors years ago. The publisher, Eidos Interactive (now part of Square Enix / Embracer Group), never greenlit a proper sequel after I.G.I.-2: Covert Strike (2003). --FREE-- Download Project Igi 3 Highly Compressed Pc
Be extremely careful with "Highly Compressed" (.rar or .zip) files from unofficial sites. These are common vectors for or adware . If a 2GB game is compressed down to 200MB, it’s usually either missing essential files (like audio and cinematics) or contains something a bit more sinister. Scientific data compression has limits