Easily Path of Exile. There's something so relaxing about blowing up the entire screen with one flick of my wrist, and it really gets my endorphins flowing to minmax my stats using third party tools like Path of Building and testing out items on the trade site / changes to my skill tree to see how they'd affect my build.

To some people it sounds like work, but for me it hits that sweet spot of minmaxing and complexity that no other game really can.

Edit: I should also mention that lately I've been mostly playing on Steam Deck which has been a revelation for me. Endgame "alch and go" mapping is so perfect for the pick up and play style, only enhanced by having access to it from the couch/toilet.

Outer Wilds. But I already know everything that happens. So I prefer watching a stream/VOD of someone playing it for the first time.

My personal ones:

• Euro Truck Simulator 2, with some heavy country music blasting on the radio
• Gnome Mahjongg
• Dorfromantik
• On my arcade machine lately VS Dr Mario and Tapper

Journey and Flower

BOTW for sure. The expansive open world is just great to get lost in. Not to mention the soundtrack can be calming when you're out riding your horse in the fields.

Microsoft Flightsim for me. Pick a beautiful place, anywhere on Earth, and just explore. Even better if you do it in a glider: the only sound being the wind around you as you take in the view is incomparable.

Hardspace: Shipbreaker can be a super relaxing game. You sit back and slowly disassemble massive spaceships in a salvaging yard. I love playing it when I want something mindless but relaxing. It's nice sitting alone in the salvaging yard with the catchy music and slicing apart a bulkhead.