
A Base & Kingdom Building LitRPG · by Cattacomb
He filed 101 support tickets.
The System turned him into a demon.
Kairon is a system clerk that finally gets his own city charter. So he does what any good bureaucrat would. He reads the entire Terms of Service, identifies a loophole, and exploits it.
The start of the hit litrpg series with over 350,000 views on Royal Road!




Now available for pre-order
Demonic City Builder Book 2
Tentative release date: October 18, 2026. Available now for pre-order. Audiobook expected late November / early December.
Reader Reviews
Demonic City Builder is what happens when a rules lawyer gets turned into a demon and handed a city. Darkly hilarious, and the prose sings. If you ever wondered 'What if Sauron was actually reasonable?', this is for you.
It literally feels like a day at my job but heaped on top of Heroes of Might and Magic.
Scratches a couple itches that aren't normally addressed in progression fantasy.
Series
From the Author
The inspiration for the systems behind Demonic City Builder came from pouring thousands of hours over the years into my favorite city builders and colony management games.
As for the characters and book itself... That's more my take on a genre that doesn't give nearly enough love to characters that use the fine print instead of swords to do their fighting. Well, most of it!
About the Author
Building a demonic city with the power of middle management!
When I'm not writing, I'm playing video games that require more thinking than clicking, entertaining my bengal cat that might as well be a dog, and helping small business owners achieve their dreams!

