Seems only a small amount of Obyte is required to use FUTURE. There is an Obyte bot where Gbytes can be obtained just by answering and voting on questions like this:
Question for drugwars players, how many hours do you spend a day on the game?
Answer with Obyte and earn up to 1,000,000 bytes: https://particiate.net?#@156
RE: DW choses obytes to host Future