This game looks like it has the potential for being a serious competitor to Minecraft.
It's currently in early access, but has mostly positive reviews.
"To a world that you can shape as you choose.
Explore the deepest caves, the densest forests, the highest mountains or the most secret dungeons.
Design the tools that you need to master your challenges, invent increasingly advanced and powerful technologies.
Found your own civilisation, team up with other players, trade with them or fight them."