Method 3 — Edit or Replace Save Game Files
To use many of the internal level-skipping commands, you must first enable the console: igi 1 how to unlock all missions
If you are stuck, consider these tips before cheating: Method 3 — Edit or Replace Save Game
You need a file named qsave.sav . You can easily find this by searching "Project IGI 1 all missions save file" on Google (sites like SaveGame.info or various gaming forums host this). from built-in cheats to file modifications.
Unlike modern games with mission select menus unlocked from the start, I.G.I.-1 uses a linear progression system. You must complete missions sequentially. However, there are specific methods to bypass this. Below, I will break down every legitimate (and semi-legitimate) way to unlock all 14 missions, from built-in cheats to file modifications.
