I am going to recommend, perhaps, my favorite game of all time, Outer Wilds from the studio Mobius Games.
But please please promise to go in completely blind. Your awareness and knowledge of the world is the key mechanic, so almost any info not only spoils the mystery, but also robs you of literal measurable minutes in gameplay.
All I can say - it is a very touching first-person immersive stimulation game in space about, essentially, alien archeology. Expect wonder, discovery, some frights, have your mind completely blown every 10-20 minutes. It will probably make you cry a couple times as well.
It is one of those games when, after finishing it, you immediately get sad because you will never experience it again in the same way. So you start annoying everyone into playing it, just to enjoy discussing it and seeing someone else play.
And the DLC is equally awesome.