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.
Tametsi
Simple premise is basically Minesweeper, but all the puzzles are handcrafted with some neat designs and concepts that will stretch your puzzle solving to the limit. Also importantly, no guessing required to solve and it’s dirt cheap for the amount of hours of puzzles you get!
Piggybacking off of this comment, if you happen to enjoy Minesweeper, I recommend:
14 Minesweeper Variants
No guessing is required to solve any puzzle either, despite some variants seeming completely impossible.
Fun fact: There’s an achievement for stumbling across a level with a conpletely empty starting board, without any spaces being revealed to be mines or non-mines. Yes, that can be solved without guessing.
Fun fact 2: I’d argue there are more than 14 variants.