I've been testing the trainer for a while now and it does cause crashes. I played the game for several hours without the trainer, no problems. Then I played with the trainer, no problem for about a half hour, then constant crashes when using any options except infinite health and infinite oxygen. Stopped using the trainer and the game kept crashing. Don't revert to an earlier save and lose your progress, you can fix this by uninstalling and reinstalling Death of the Outsider. Tried administrative mode with no problem, also tried Windows 7 compatibility. This did not help game stability. Something in v1.144.0.17 has broken the trainer horribly.