Like, games that you have played through multiple times, but you still like to replay them from time to time because you can just relax and have a good time without too much hassle.
For me some are Dark Souls 1&2 and Borderlands 1, I can play them without too much thoughts about what I’m doing, but still be focused enough so no bad thoughts appear.
The Witcher 1. It’s been a while since I’ve replayed it, but I know it like the back of my hand. Just thinking about the first chapter - gathering some White Myrtle accompanied by that lovely soundtrack - calms me down.