Gone Home you said?
You are a gnome who used to live in a normal countryside house
But time has passed, the owners left, and the countryside …and your house, are being swallowed by a growing Hi-tech Megalópolis
You must now abandon your place and find a new base
who knows what wonders and dangers you will find in this new human crafted world
The idea is sort of having a free roaming world, you must hide from humans, sneak into their huge homes (their big…for you)
Gather resources, find other mystical beings (fairies, pixies, other gnomes, Djinns, sprites,etc)
Your Gnome should be 100% costumizable
Learn and improve your magical skills, see how they can affect the modern world.
You can choose to help or harrass humans, there would be quests scattered around and so on.
From fighting gremlins inside a hig-end building ventilation system, to helping missing cats, drive hipster sjws insane, protect hobos from gang members, etc
(i wanted to place an abandoned house or Doll Factory, the dolls don't interact with humans, but when they notice you , the maimed, broken twisted dolls, try to harm you, and they do that doll talk with childish voices and then try to crush you)
The design of the UI should be "book-like"
i wanted something more akin to "path"
You can reject new technologies and focus only on your magic skills
You could try to make weapons and traps with modern technologies, but be like a nomadic scavenger
or you can go full on magitech, stay inbetween the walls of a modern building make a mix magic a modern tech like electric weaponry activating explosive charges with fire magic and shit
also making armor out of anything "Bottlecap-mail" rubberband + clips belt, shit like that