If you are looking to relive the nostalgia without the frustration, or if you simply want to explore the later levels of the game, you are likely searching for how to . Since the game does not offer a traditional "level select" cheat code that can be toggled on the main menu, players must utilize specific workarounds to access the full campaign.

For a generation of gamers, Project I.G.I.: I'm Going In remains a defining title in the tactical first-person shooter genre. Released in 2000 by Innerloop Studios and Eidos Interactive, the game is fondly remembered for its massive open levels, the unforgiving "one-shot-kill" difficulty, and the iconic protagonist, David Jones. However, the game is also infamous for its steep learning curve and lack of an in-game save feature. For many players, getting stuck on a difficult mission like "Border Crossing" or "Nuclear Infiltration" meant hitting a wall that stopped their progress entirely.

In this comprehensive guide, we will explore the methods to unlock every mission in IGI 1, ranging from the reliable file-editing technique to the modern solution of using "All Missions Saved" game files. Before diving into the "how-to," it is important to understand how Project I.G.I. handles player progress. Unlike modern games that store progression in the cloud or in a user-friendly "Save" folder, IGI 1 uses a simple file-based system to track which mission the player is currently on.