Minecraft is a popular game with more than 20 million paying users and many more playing the free version. However, in today's multiplayer mode, only a few thousand users can play together. For a common setting, when players cannot modify the map, we have designed a distributed system to scale the number of users. The Manycraft software runs on users' machines which communicate through Kiwano infrastructure. This paper describes its architecture and implementation. Manycraft node is available for download at http://manycraft.net, so we expect players to participate and join the demonstration at the given time slot.