If the keys do not work on your version, you can manually unlock missions by replacing your save files:
Extract the trainer file into your Project I.G.I. game directory. Launch the trainer launching the game.
C:\Project I.G.I. or C:\Program Files (x86)\Eidos Interactive\Project I.G.I.
Now, I will write the article. IGI 1 All Mission Unlock Key Fixed: Your Complete Guide to Unlocking All Levels igi 1 all mission unlock key fixed
This guide was last updated in 2026. Game versions, mod releases, and software tools may change over time. Always refer to the latest documentation from the mod authors and trusted community resources.
| Code | Effect | | :--- | :--- | | imdone | Instantly completes and skips the current mission. | | ewww | Instantly kills all enemies on the map. | | allammo | Provides unlimited ammunition. | | allgod | Activates god mode for the player and squad. | | holowman | Grants invisibility to the player. | | stormydayq | Changes the weather to a storm. | | bigbang | Destroys all enemy vehicles (e.g., tanks). | | asprin | Fully restores player health (a one-time heal). | | needbackup | Spawns two allied soldiers to assist. | | hutid | Gives the player every weapon in the game. | | diehard | Instantly kills the player. |
If you prefer a quick automated fix, you can download a mission unlocker registry key ( .reg file) or a game trainer. Option A: The Registry Fix ( .reg ) If the keys do not work on your
Did you install the game from a , a repack , or a digital download ?
: Press Ctrl + S to save the file, then close Notepad. Launch the game, and all levels will be accessible from the main menu.
Remember to always back up your game files before making any modifications, and enjoy your newly unlocked missions! C:\Project I
This method requires some familiarity with Cheat Engine but offers a high degree of control.
Drop a comment below with which mission you played first. If you are still stuck, share your Windows version and game source (CD/GoG/Abandonware), and we will help you debug.
You will now see all 14 levels—from Trainyard to Bomb Finding —fully unlocked and available to play at any time.
If you are already inside a mission and want to move to the next one instantly:
This comprehensive guide delivers the permanent fixes, cheat codes, and file modifications to unlock all 14 missions safely. Method 1: The Config File Fix (No Downloads Required)