I used to really love gaming, but my interests have sharply changed in the last decade, and honestly I can barely manage to conjure up the desire to finish anything. Maybe I'm mentally ill IDK. I really liked playing Fez over the last year or so, and that's it. Nothing else has really grabbed me (I did finish Journey and the Ori sequel though). Over the last year I've tried: Far Cry 1, Puzzle Quest, Faster than Light, and Cluster Truck. I really need help rekindling this once burning flame, or the embers will die out.
tetris, mahjong, and pokemon are fun to play without thinking, have some depths to explore if you feel like it, free to play online, and require little effort (minus tetris idk)
I usually incorporate a gacha routine in my day to day life, rolling on a banner gives a little spark in the brain at least once a week, whichis cool, currently playing arknights with an emulator, a tower defense. again, free(2p), with some depths, but no gamer moves required,
recently bought raji on the switch, it seemed dope, it's like an indian tale with minimal gameplay afaik , but I'm like 1hour in, I think it would fit what you're asking for idk
I really need to learn Mahjong regardless of entertainment value. Kaiji awaits me. Fuck pokemon though, Nintendo has been phoning it in since Gen 3.