Extract the downloaded ZIP archive using a tool like WinRAR or 7-Zip.

Walk past guards and security cameras undetected.

: Right-click the downloaded trainer executable and select Run as Administrator to grant it memory editing permissions.

Many trainers are flagged as "False Positives" by antivirus software because of how they interact with game files. Always download from reputable community sites and use caution.

The most reliable 13-button modifications generally unlock the following in-game cheats via simple hotkeys (usually Numpad 1 through Numpad 9 and function keys):

LinGon’s trainer is famous for using a “click-and-freeze” method. Instead of toggles, you lock memory values. It offers extras like (essential for the nuclear base mission) and “One-Hit Kills.”

Several legacy trainers are widely recognized in the community for their reliability with the 1.3 patch:

A trainer is a background program that modifies game memory to grant you special abilities. The "+13" designation means this specific tool offers thirteen distinct cheats or "hacks." It is widely considered the most stable and comprehensive version for the PC edition of the game. Key Features of the Trainer

Disables the enemy's ability to trigger base-wide alarms, allowing for easier stealth gameplay. Highly-Rated Trainers for v1.3

After extensive research, we've compiled a list of the 13 best IGI 2 trainers and cheats. Here they are: