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.
Within a Deep Forest
The first game I ever completed and the first time I left a review for a game. The music, the atmosphere, the design, everything blew away. It was freeware from back in 2006. Made by a guy called Nifflas. It’s a sidescrolling platformer where you are an intelligent bouncing ball. I still think about it to this day.
Now this is a real oldie but a goodie. Glad to see that it is mostly unknown from the ratio. Obligatory downvote
Oh wow, I never heard of this but I love Knytt Underground by the same developer. You also play as a bouncing ball at least for part of it.