Minecraft is a sandbox construction game involving players creating and destroying various types of blocks in a three dimensional environment. The player takes an avatar that can destroy or create blocks, forming fantastic structures, creations and artwork across the various multiplayer servers in multiple game modes. 
As such it is a hotbed of virtual cities and towns which when stepped back from has notable potential for data visualisation, community planning and even public GIS. The movie below is a neat time-lapse detailing how to build a town in 30 minutes:
How to build a Minecraft town in 30 minutes
Andy
CASA, UCL East
Recent
Open Gauges: A Stepper Motor Wind Direction Gauge
Longmarsh: Mapping a Solar Farm and Data Centre for the Villages it Surrounds
The Papers: The 2nd Album
Spatial Computing and the Phygital City: Towards Digital Habitation
Color Weather: A Data Watch Face for the Pebble Time 2