Nettle on Steam
store.steampowered.com
A survival RTS game about exploring the vast cosmos, the many planets inhabiting it and their countless secrets. You'll need to explore, gather resources and research new technologies in order to survive, thrive, and eventually build a colony on a bizarre, foreign world.

Source:

https://store.steampowered.com/news/app/3192880/view/571516038452085863

“From the next update and so on, the game will not be free to claim anymore; It will be sold for it’s standard price (15$). The game will remain in early access. We concluded that the original scope for the original concept has been fulfilled and that this decision also fits our needs for the continuation of development.”