Don’t think I saw these mentioned so here ya go:

• Little Kitty, Big City
• Any of the Atelier games if you don’t mind anime, though the upcoming one may not be as relaxing in terms of its story.
• Timberborn, though some might feel stressed about handling droughts. You can turn the difficulty down and it’ll just be a cute diorama where you build a city (or cities) with beavers.

And this is extra but grab your friends and family and play some couch co-op. It can help get your mind off things and just enjoy being in company of loved ones.

Aand if you want to eventually find something that will keep you hopeful in the face of despair, in a healthy way, I recommend the first part of Honkai Impact 3rd. It’s long, has lots of depressing moments, enough to make fans call it Depression Impact. The story touches on themes of existential horror, suicide, duty, death of loved ones, humans who have no morals and believe that all rights and wrongs as transient, cosmological threats, etc. Despite all that, I’d actually say that it’s a story about hope, and what can lay the foundations for hope. It’s definitely fan-service-y, and it’s a gacha game, but very much ignorable and playable without investing any money in it. It’s also made by a Chinese company, but maybe that can help with recalibrating perceptions on Chinese people, instead of what we’ve come to know through their government. Of course, if you’re susceptible to gambling addictions, please feel free to ignore this recommendation.