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.
Factorio. Always. Others depends on mods. Minecraft, rimworld and satisfactory are great if mods are good for them. Well mods for Factorio too but playing space age without added content is just always so relaxing to me. Only 5k hours sadly in Factorio.