I picked up this early access game a couple of days ago on sale at Humble for $23.99 (USD), a 20% discount. My best description is a first-person Factorio concept with Empyrion or No Man’s Sky graphics/movement.
It’s a very chill, untimed game: there are very few enemies - you mostly encounter one or two hog-type things around resource nodes, but once you dispatch them easily, they don’t seem to respawn. Anything you build can be disassembled without loss of resources, making it painless (cost-wise) to correct a mistake or try different layouts. And apparently the resource nodes (iron, copper, etc) are infinite.
At five hours in I’ve got quite a few things hooked together now, like iron miner → smelter → constructor → storage, which you can configure and change to produce whatever can be made from its input. The conveyor belt system is VERY flexible, intuitive, and accommodating: click the output of machine 1, click the input of machine 2, and swoop! your conveyor is built - even around corners and up/downhill (up to 35 degrees). For more complex layouts, conveyors have supports and escalators/descalators.
Powering all these machines becomes more and more of a task, both in the logistics of laying out the power distribution grid, and finding organic material like leaves and wood to feed the generators.
There is no “survival” aspect to your character: you don’t need to eat or drink, and no animals or aliens will attack your base. It’s all about building!
This video gives a pretty good demonstration of the beginning of the game:
