Unlike modern games that require complex "trainer" downloads or mod installations, I.G.I 1 has a beautifully simple unlock mechanic built right into its files. You don't need to be a computer genius; you just need to know where to look.
Go to your IGI installation folder (usually C:\Program Files\Project IGI ). Locate the folder where save data is stored. unlock all mission in igi 1 game usttad
After you unlock all missions, remove the "Read-Only" flag from IGI.STG . Play Mission 14. Beat it. Then, watch the credits. You have earned the title. Unlike modern games that require complex "trainer" downloads
In IGI’s save logic, 5 represents a completed mission. By filling the file with 5 s and locking it, the game believes you have achieved a perfect score on all missions. The "Read-only" flag prevents the game from overwriting your progress. Locate the folder where save data is stored
The most direct way to access all missions is by using a hidden command at the main menu: : Go to the main menu. : Hold the Left Shift keys simultaneously.