This Inevitable Ruin: Dungeon Crawler Carl, Book 7

About the book

Carl and Princess Donut enter the ninth floor's Faction Wars, where rival armies fight to control a central castle. This season, the crawlers field their own army and newly self-aware NPCs join the conflict as an independent force. With permanent death threatening every combatant and a rule that pits Donut's survival against Katia's, victory alone may not be enough to save their friends.

Synopsis source: Penguin Random House (opens in a new tab)