Stardew Valley is the indie game I've spent the most time playing. Super relaxing and addictive, but also super well known so you've probably played it already if you like the premise.
Return of the Obra Dinn is my favourite "finite" indie game, meaning there is a story and it ends at a certain point. Super awesome and super challenging detective game where you have to relive the dying moments of the crew from a ship and determine the fate of each one. Oh, the soundtrack and animations are super satisfying and crisp (it's from the same guy as Papers, Please, so you can expect that same kind of humour too).
The Red Strings Club is pretty short and not for everyone, but I think it's the best game at dealing with robotics and ethics in the future on a cyberpunk world (certainly way better than Cyberpunk 2077). That said, the gameplay is minimal and relegated to minigames, you're just choosing things and partaking in dialogue most of the time.
Gorogoa is a beautifully animated and super relaxing experience. The bittersweet story is only told through animation and sound effects while you move squares around to form an everchanging mosaic. Super recommended.
Into the Breach is from the guys who made FTL. It's kind of a mix of strategy and puzzle. Super tough and super addictive. Also pretty cheap now, so you should get it at least to give it a try.
