Blockholm is "an exact replica of Stockholm reproduced in Minecraft. All districts, islands, streets, bridges, parks and squares are depicted as in real life with one big exception - we have deleted all the city buildings". Members of the public were invited to "participate in creating a new Stockholm in Minecraft".
It was initited by designers & developers and encourages people to participate through an online platform. Blockholm is local in orientation and concerned with neighbourhood & community.
It was launched in October 2013 and will end with an exhibition at the Swedish Centre for Architecture and Design. 10,000 people have been involved.