User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-4003956-20120423163831/@comment-5043481-20120813171319

@Lord loss, about the space travel for hunters. It isn't crazy.

Maybe sometime in the distant past the humans came from earth to this new amazing planet, and were eventually battered by the monsters. The civalisation became less civilised over time with frequent moster attacks, eventually getting to the point we see now in monster hunter. This would explain the tower and the underwater ruins (and the accosiated city in moga woods), as the past civilsation was far more advanced. Guns are still around as an idea like this will stick around.