This is a virtual casino based on premined bitcoins by the game owners or players.

I'm talking about more of a real rpg game with exploration, mining and mobs, something towards Guild Wars 2 or Skyrim (but in a small scale), and with its own p2p currency mined by all machines as part of a pool that distribute the coins to the game world while playing in real time, totally different concept. Plus with this one you need to buy minecraft, while I'm talking about a totally f2p game.