Go to the niche forums. The abandoned subreddits. The Internet Archive’s “software” section. You will still find threads titled: “Looking for Fallout 3 v1.7.0.3 Trainer that actually works.”
We run it sometimes. Not to cheat. But to hear the ping of the trainer’s “activated” sound—a simple Windows “beep” or, in the fancier versions, a robotic voice saying “Trainer activated.”
Why? Nostalgia, mostly. There is a specific speedrun category called “Assisted Glitchless” that relies on the memory-stable environment the trainer provides. There are modders who use the trainer to test quest triggers without dying to random environmental damage. And there are old men like me who still have a folder on an external HDD labeled “GAME TOOLS” with a creation date of 2010.