These are the ones I’ve tried personally.

-Brotato It’s like vampire survivor, but potato

-Subnautica The underwater visuals are perfect for baked brains

-Destiny 2 Go solo and just visit the different worlds, don’t worry about quests or missions just enjoy the scenery and shoot things, occasionally. Without knowing what’s going on there are a lot of neat secrets places to stumble into and some of the scenery is awe inspiring.

-Disco Elysium If you can read and toke, it takes you places

-Dorf Romantik Someone already mentioned this but it’s worth it. Like a puzzle, but there are no wrong pieces

-Eufloria Not complicated, very chill. I don’t know how to describe what it is…leaf seeds fighting each other?

-Lego Pick a franchise and there’s a Lego game. Doesn’t require much brain power and you always feel like your winning.

-Red Dead Redemption 2 It’s like going for a walk in the wilderness from the couch

-Superliminal It’ll bend your brain and is totally worth completing in one sitting. If you can’t figure out what to do just look it up. The end is worth being high for. Kind of like Stanley Parable, but with ‘perspective’.

-Stanley Parable Definitely try this one.

Peggle and Tetris effect are also really great suggestions. Tetris Effect has a really great reactive soundtrack.

Ones I haven’t tried but think would work

-High on life

-Powerwash simulator