Using Cheat Engine modifies runtime memory and can cause crashes. It is strictly for single-player, post-campaign experimentation. Numerous pre-made “trainers” (small programs that automate this memory editing) also exist for IGI 1 (e.g., from MegaGames or GameCopyWorld), which provide one-click “Unlimited Health” and “Unlimited Ammo” toggles.
A: Project IGI 1 is a single-player game with no multiplayer anti-cheat system. You cannot get banned for cheating in the campaign.
Instead of seeking cheats, players might consider:
Type on your keyboard to enable the cheat console mode.
If the keyboard codes fail due to patch differences, a software "trainer" is your best alternative. Trainers are small, safe third-party programs that run in the background and modify game memory values. Popular Trainer Options: