: Navigate to the installation directory, typically: C:\Program Files\Project IGI\pc\ .
Many laptops do not have a dedicated F9 key or require the key to be held for function keys. Check your laptop’s manual. If necessary, use an external USB keyboard, which often resolves this issue.
Open the mission selection screen; all missions should now be unlocked. igi 1 all mission unlock key fixed
Which do you have (Original CD, GOG, or a digital download)?
Using a configuration fix or a registry key injection saves you time, bypasses technical glitches, and lets you replay your favorite nostalgia-inducing levels whenever you want. Method 1: The Configuration File Fix (Easiest & Safest) If necessary, use an external USB keyboard, which
Windows will show a security warning asking if you are sure you want to add the information to the registry. Click Yes , then click OK .
Project I.G.I. was designed for Windows 98/XP. To ensure your unlocked missions run smoothly on Windows 10 or 11, right-click igi.exe , go to -> Compatibility , check Run this program in compatibility mode for , and select Windows XP (Service Pack 3) . Also, check Run this program as an administrator . 3. "Graphics Driver Error" When Loading New Levels Using a configuration fix or a registry key
To make these newly unlocked missions easier, you can activate cheat mode: IGI 1 Cheat Codes and Unlocks Guide | PDF - Scribd
These are active while playing the game, giving you immediate access to a wide range of debug tools.
While modern versions of the game may vary, these are the primary ways to access every level immediately: