I have /finally/ finished the map for Underpath. Progress has been slow because I've been kinda lazy. It's a fairly big area, with 47 rooms in total. While Backwoods and The Remnant are technically bigger, with 56 and 55 rooms respectively, those include a lot of "safe" areas with very little gameplay -- The Remnant has its exterior, connecting walkway, and upper levels, while Backwoods has a water tunnel, research station, and cliffside. By contrast, Underpath has very little of that kind of thing, so it would probably be larger if those were excluded from the count.

The character assocated with this area will be the new character Kris, who will play an important role in the story but won't have the long-standing importance that Jaye and Hunter will have.

While it can be accessed much earlier, Underpath will be balanced around a level 44 Emerald with red weapons. It will be designed to be extremely difficult without first getting the red weapons.

It will connect the two halves of the overworld. The Western part is mostly complete, and will comprise everything from Shade Hollow to now plus an optional bonus area I'll add much later. The Eastern part, which I've yet to start work on, will be slightly smaller and contain the sixth and seventh areas plus another optional bonus area and, eventually, a one-way path to the endgame, eighth area.

Hahaha, I'll probably never be able to finish this game.