So this idea has been ratteling around in my head for a while now. 

Genres: Adventure, Action(?), Kingdom-building, System-apocalypse/integration

Main character: person from modern day earth gets reincarnated as a dungeon core. Is a anime nut, bookworm(LitRPG, Sys-Apoc, kingdom-building, reincarnation, dungeon-lit),  DIYer, and gamer(city builders and logistics games like satisfactory) for being an awakened dungeon they get to create 5 abilities plus 2 per level and choose dungeon type. As the first awaked dungeon they get to create their own dungeon type that will be added to the system they become the first sanctuary dungeon. Their first 3 abilities are as follows #1 a system logged library containing all knowledge and media they consumed during their first life. #2 the ability to create system supported items from any media consumed during their first life. #3 the ability to pull spatial shenanigans i.e. rooms bigger on the inside and portals. 

Reading on Amazon or a pirate site? This novel is from Royal Road. Support the author by reading it there.

Note they do get a dungeon fairy

World: standard fantasy world except for 2 main things #1 magic does not exist within the world until begining of story. #2 world is essentialy earth during the middle ages with the addition of other races 

Races: Elves age upper limit 1100 years natural affinity towards nature tendency to be scholars. Dwarves age upper limit 550 natural affinity for and sixth sence for underground resources tendency to be craftsmen. Beast-kin age upper limit 150 natural affinity towards animals tendency to be hunters/gatherers. Gnomes age upper limit 510 natural affinity towards ??? tendency to be clock/watchmakers and tinkers. Humans age upper limit 120 affinity and tendency culture based.

Note age upper limit is max projected lifespan if they were living on modern day earth with perfect health before system integration.

Story: ill let the writers figure this part out.