Recommendation engine: Downvote any game you've heard of before
This might be a slightly unusual attempt at a prompt, but might draw some appealing unusual options.
The way it goes: Suggest games, ideally the kind that you believe would have relatively broad appeal. Don't feel bad about downvotes, but do downvote any game that's suggested if you have heard of it before (Perhaps, give some special treatment if it was literally your game of the year). This rule is meant to encourage people to post the indie darlings that took some unusual attention and discovery to be aware of and appreciate.
If possible, link to the Steam pages for the games in question, so that anyone interested can quickly take a look at screenshots and reviews. And, as a general tip, anything with over 1000 steam reviews probably doesn't belong here. While I'd recommend that you only suggest one game per post, at the very most limit it to three.
If I am incorrect about downvotes being inconsequential account-wide, say so and it might be possible to work out a different system.
In Grotto, you play the role of a soothsayer living in a cave who is occasionally visited by members of a tribal society living nearby. They come to you with problems, and they want you to present your opinion, but you can't speak. You have access to constellations of stars, which each hold different meanings, and you must present your answers in the form of a single constellation, which the petitioners are left to interpret.
You'll feel a bit of frustration as your intended message is missed completely in favor of something that the petitioner wanted to hear, and the same constellation might mean different things to different people, but that's just part of the game. The story unfolds around you and its progression is communicated to you only through the explanations your petitioners give for their visit. Each is a uniquely unreliable narrator, so what you believe is for you to decide.
Two endings, and an interesting story with some occasionally unexpected consequences that might make you feel bad, so if a game giving you a case of the sads is unappealing, maybe take that into consideration.