I love Rumis the original game that is now discontinued. 3D blockus is its new version.
Rumis has more boards and it's based loosely on ancient Incan structures. The board itself in 3D blockus is plastic as are the interchanging templates for building. There are also less games to play in 3d blockus. Rumis has 8 boards blockus 3.
The game feels more plastic fantastic and less interesting then Rumis.
Standing alone 3D blockus gets 3 stars. Compared to Rumis 1 star.