The war everyone has been waiting for has finally arrived in This Inevitable Ruin, the thrilling seventh installment in Matt Dinniman's #1 New York Times bestselling Dungeon Crawler Carl series. Featuring exclusive bonus content available only in this hardcover edition, this action-packed LitRPG adventure raises the stakes higher than ever before.

Welcome to the Ninth Floor: Faction Wars.

Nine powerful alien factions descend upon the battlefield, each determined to seize control of the castle at its center. Strategy, betrayals, shifting alliances, and all-out warfare make this the most anticipated event in the galaxy—and the deadliest season yet.

But Carl has changed the game.

For the first time in dungeon history, the crawlers have built an army of their own. Even the NPCs, once disposable cannon fodder, have awakened, choosing to fight for their freedom instead of serving the system.

As Carl, Princess Donut, Katia, and their allies prepare for the battle of a lifetime, the consequences have never been greater. On this floor, death is permanent. And no matter who wins the war, only one of Donut or Katia can survive to move forward.

With impossible odds, unforgettable humor, explosive battles, and emotional moments that will leave readers stunned, This Inevitable Ruin is another phenomenal installment in one of today's most beloved fantasy series.

Why You'll Love This Inevitable Ruin

• Dungeon Crawler Carl Book 7
• #1 New York Times bestselling series
• Hardcover exclusive bonus material
• Massive fantasy battles
• Clever LitRPG game mechanics
• Hilarious dialogue and unforgettable characters
• Emotional character development
• Perfect for progression fantasy fans

Tropes & Themes

• LitRPG
• Epic fantasy
• Survival game
• Alien invasion
• Military strategy
• Found family
• Self-aware NPCs
• High-stakes warfare
• Dark humor
• Team alliances

Perfect For Fans Of

• Dungeon Crawler Carl
• He Who Fights With Monsters
• The Primal Hunter
• Defiance of the Fall
• Cradle
• Beware of Chicken
• Science fantasy
• Progression fantasy

Book Details

Title: This Inevitable Ruin

Series: Dungeon Crawler Carl

Book Number: Book 7

Author: Matt Dinniman

Format: Hardcover

Genre:

• LitRPG
• Fantasy
• Science Fiction
• Adventure
• Humor

Special Features:

• Hardcover exclusive bonus material

Pages:
880

Publication Date:
September 23, 2025

Dimensions:
9.1 × 6.1 × 2.4 inches

Series Reading Order

1. Dungeon Crawler Carl
2. Carl's Doomsday Scenario
3. The Dungeon Anarchist's Cookbook
4. The Gate of the Feral Gods
5. The Butcher's Masquerade
6. The Eye of the Bedlam Bride
7. This Inevitable Ruin
8. A Parade of Horribles

About the Author

Matt Dinniman is the #1 New York Times bestselling author of the wildly popular Dungeon Crawler Carl series. His unique blend of science fiction, fantasy, dark comedy, and LitRPG mechanics has earned him a devoted global fanbase. He lives in Gig Harbor, Washington, where he also pursues music and art.