User blog comment:Kogath/Monster Hunter Stories Discussion/@comment-29038963-20160824063850/@comment-184612-20160824234334

@Drake 512;

According to Capcom, basically only the first game of the series counts as the Main game, while everything else is a Spin-off.

For example; MH4 is the Main Game, while MH4G and MHX are spin-offs.