An official was never released by the original developers. While a prequel titled I.G.I. Origins is in development, any existing "Project IGI 3" download is likely a fan-made mod or malware masquerading as the game. Status of the I.G.I. Series
Downloading games from "Ocean of Games" or via uTorrent links for unreleased titles is highly risky and often leads to malware or viruses . project-igi-3-pc-game-free-download-utorrent-ocean-of-games
The original tactical shooter developed by Innerloop Studios. I.G.I.-2: Covert Strike (2003): The official sequel. An official was never released by the original developers
If you are looking for gameplay similar to the Project IGI series, consider these titles: Tom Clancy's Ghost Recon: Wildlands Breach & Clear project-igi-3-pc-game-free-download-utorrent-ocean-of-games
An official prequel currently in development.