Krakia?

well now im convinced, though i still cant put together how the area in the jungle would be all futuristic, but then again the laws of physics dont apply to the game. will admit, the designs are indeed very impressive and shiiiiiiiiiny.

Just look at all the monsters in NLC's initial release:

Mechanical self-replicating bomb

Robot that Foxwit brought from the future (suddenly makes sense seeing them in Neo City)

Cybernetically modified elephant

Cybernetically modified elephant

This one's debatable, but it looks partially mechanical to me, plus it's a chimerical mish-mash of different species

Mechanical Bee. If you watch the death and hit animations, it doesn't even appear to have wings, but more like a jetpack. This still image looks like wings though.

Mechanical "spider" monster

So recolored slime and mushroom aside, every monster in NLC's initial release except for the Maple Eater is metallic or mechanical in some way. When you realize that, it's easy to see an advanced city like that nearby.

I don't know if I should post this here or make a thread on Q&A, but how do I get the rest of the quests for Masteria?
I've done every quest at least once, but I still haven't got the high level quest that requires you to wear MoN.
I hadn't done the Icebyrd slimm quest chain and I did it today, I got 2 thrones, but no more quests after that XD

You have to do literally everything. all the repeatable quests, everything until your Masteria log is totally empty (excepting the Android gear quests now)