Project I.G.I. is famous for its punishing AI and "one-shot" difficulty. Because the game doesn't feature an in-game "Unlock All" button, players usually have two choices:
Paste and replace the existing files in the corresponding folder. igi 1 all mission unlock key fixed
If you just want to play all missions without grinding: Project I
Unlocking the game provides access to all 14 tactical missions: Military Airbase Radar Base Get Priboi Border Crossing Missile Trainyard Defend Priboi Eagle's Nest I Eagle's Nest II Nuclear Infiltration Finding The Bomb If you just want to play all missions
Once you've unlocked the missions, you might want these standard cheats to help navigate the tougher levels like "Border Crossing" or "Finding the Bomb". Cheat Code Type this at the main menu to enable cheats God Mode (Player & Team) Unlimited Ammo Sets difficulty to Easy Unlocks all weapons Modern Compatibility Fix If you are playing on Windows 10 or 11, you may need a Widescreen & FOV Fix PCGamingWiki
: You can download "all mission unlocker" packs from community sources like Project IGI Toolkit on GitHub Installation