Check out Alien Horizon, y'all.
It's a hard-sf colony builder that's giving me strong Outpost'y vibes (i.e. the old Sierra game).
Your colony ship lands on a planet that's about as shit as Mars, only without the benefit of having Earth around the corner to help you out. So you try to eke out a self-sufficient colony out of fuck all before your supplies run out.
And since every building and recipe needs like a bazillion components, from steel and concrete to cables, furniture, appliances, way too many types of electronics, machines, gasses, and alloys - and all of the structures are subject to wear and tear - you need to create a rather overwhelming number of production chains. All the while, you have keep your colonists from giving up hope.
Imagine Surviving Mars, but everything is hard, everything takes time, nothing is handwaved away, there are no shortcuts to anything, the planet is bleak, and the outlook is bleak. And yet, it feels kinda relaxing. There are no enemies, no crisis events, no earthquakes or asteroids. Your greatest foe is likely going to be overbuilding with shit you don't need, and straining your logistics.
It's just you vs an unglamorous, stark and serene, unwelcoming rock.
The game is in an 'Alpha preview' stage. So there's some jank, and a few placeholders here and there. The guy lass is apparently in the process of rewriting a lot of the internals, so it's very much not the final product.
On the other hand, it feels quite complete, if somewhat buggy. About as complete as Outpost ever was, iirc.
And, most importantly, it's FREE. That is to say, it's donationware. So you can show your appreciation to the dev at your own discretion.