Are you saying the game is open source, or did I misunderstand you?
you misunderstand, game client is not open source due to licencing *Current licence for some of the content only allows it to be used in built games and not for distribution as source, if you wanted those rights estimate it would cost about £100k+ extra
there is no current plans to open source the server side MMO framework
it would be nice but is just not practical
Also note that the games will follow the same type of Agile/Continuous development that the open source projects like BlakeCoin follow which fits perfectly to MMO games e.g new content will continuously be added, feedback from the gamers is also important for dealing with bugs, glitches and balance
Games once in open beta will be free to play although some stuff will only be available though the shop paid for by Blake256 crypto currency