Great game idea. If you ever make a sequel, you should consider not only including other culture's folklore (Japanese folklore has a lot of wacky creatures) but also how local folkcreatures would interact with invasive folkcreatures that would be introduced since the invention of steam ships and fast intercontinental transit.
I know I'm just "ideas guying" right now, but there could also be something with different corporate cultures clashing mixed with how different old pagan cultures deal with their "duende"? Something like international mergers or something?
It feels like this is just scratching the surface of what could be done and I hope more of this quality work is done in the future.