Just found it on Steam after doing a web search for a peaceful crafting game. It's like Second Life without the Lindens and all the other BS. I love it, and have no doubt I'll love it on the new engine too.
Trello update: The last weeks we've been improving the terrain generation and we've also put some effort into making landscapes smoother in general (to avoid bumpy terrain). Apart from that, we've also been working on new building tools. You find more information on Trello, but also expect an announcement about the recent changes soon