While it definitely is cool, I wonder if they can get the same wide breakthrough as minecraft has, just because this is more advanced/complicated. To build these things you have to have a higher understanding of geometrics and physics than you need in minecraft. And while this certainly talks to me as an engineer, I'd think most gamers are not engineers and might have a hard time understanding the basics of a game like this. In essence, the potential user group would be a lot smaller for a game like this than minecraft.
EVE Online characters:
Daedalus II ex-CEO TOGOA, Daedalus III slave of Daedalus II
Little Molok Asura Engineer
"Each day I don't get an attempt on my life by a robot from the future I see as a personal failure"