After waiting to log in for the better part of an hour I finally got five minutes with free-to-play voxel building MMO, Trove. On the sixth minute the servers were brought down. Update: Now with the damn video.
Pixels were great, but they were so two dimensional. Polygons were really cool, but now that developers have to license them directly from the gaming website (they do not), everybody's moving to voxels. Even Rift and Defiance developer Trion Worlds is doing it, with free-to-play online adventure RPG Trove.