Originally posted by Zep Tepi:

Sadly, Landmark no longer exists.

I have heard that Rising World might be the closest second to Landmark, but I haven't tried it yet.

Sorry, I get desync'ed sometimes. Yeah, it's gone.

As for Rising World it is 2nd to Landmark, but unfortunately it's a very very distant 2nd. I heard they're converting the game to the Unity engine some year and it's supposedly going to have better building mechanics with voxels.