How to make this? (Voxels)

How would I make this landscape? I want it to be destructible, so it would need to be in voxels.

But with voxels?
Would I need to use the marching cubes algorithm, or another technique?

Astroneers right? It’s voxel-based marching cubes IIRC and is all destructible.

Yeah, I think it is Astroneers. So it is made using the marching cube algorithm? Ok, do you know how that algorithm works, doesn’t it just, rather than spawning a cube, move the vertices to join the points of the cube up, so that they are smooth?

Quite a bit of reference material out there :

Sebastian Lagues’s Unity tutorial on Marching Squares may make understanding it easier

Thank you!