I always am wondering why people shoot down ideas like these,
everyone has there own opinion
me, i don't think it would work well, considering what kind of game this is, things like horde mode have never been meant/used for RPGs.
i my opinion, the closest thing you're gonna get to a horde mode is exploreing the wilderness.
mainstream game or not, this game is a RPG, and things like that (in my opinion) dont belong in ay RPGs,
adding it would just be w waiste of space, in which, they could have just added something to the mainstream game.