Recent reviews by RevoGen

It's a survival management games.
You learn to manage your oxygen levels, your water, and that regolith that won't stop coming.
You learn to satisfy your duplicants' needs. They won't like eating dirt and water alone.

In that process this game includes architecture and engineering.
Managing electric flow and circuitry, radiant pipe cooling, oil to petroleum to sour gas to methane to natural gas power plants, breeding systems, transit tube systems, and whatnot.
And automation. Filter, buffer, and, not, or, xor, gates can help you automate whatever you can to squeeze that last drop of oxygen out of your SPOM and generators.

The developers are great, releasing major updates every few weeks, (Rocketry, Cosmic, Outbreak, etc.).
And the gaming community is excellent, post a query on the forums and you are all set.

The gameplay is seemingly endless with tons of stuff to tinker. See that 1% stress? Add decor. Morale dropping? Revamp the whole barracks system. Power insufficient to power that aquatuner that cools water to your Sleat Wheat farm and in turn causes your farm to overheat and cause issues in your food chain? Harvest that Natural Gas Geyser which emits Natural Gas too hot for your gas pipes.
Oh wait. The developers added more materials for everything increasing the overheat temperature.

The only disadvantage this game has is the fact that it is that it has quite a steep learning curve.
But watch a few gameplay videos and you'll be all set with your duplicants.

Thanks Klei.