Awakened As A Dungeon Core? ADC

What happens when a normal man awakens in a world of magic and monsters? What if he awakens as a gemstone that can't move, eat, or communicate but is somehow alive? What happens when this stone learns to cast magic and create rooms, to bring life to monsters of its own and defend itself from invaders? This is the story of that mans journey from a small one room tunnel to a magnificent challenge to the universe.

Chapters range from 1k-1.5k words usually! First time writing this type of novel but always wanted to try so any feedback helps!
Also below is my patreon! Most things to influence my novel are free but by subscribing to it you help me afford more time to write instead of working two jobs as well as to commission artists to turn my monsters and manic dream creatures into reality!
https://patreon.com/user?u=71062598