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.
Pioneer is a great remake of the original Elite Space Sim.
It simulates the entire galaxy (core systems are hand-built, everything else procedurally generated), allows landing on planets, trading, combat, etc.
It features the original game’s Newtonian physics, so actually arriving safely at your destination is a challenge in itself, similar to flying in Kerbal Space Program. But the HUD gives you all the info you need for that.
Oh, and it’s fully open source and moddable.
Isn’t it a remake of elite ii? Oolite is more like elite 1