Games like This Book Is A Dungeon
Games like This Book Is A Dungeon include Roadwarden, Look Outside, Tales of the Black Forest, To the Moon, and The Life and Suffering of Sir Brante. We matched them by the tags players give This Book Is A Dungeon on Steam (Indie, Adventure, Interactive Fiction, Horror, and Dungeon Crawler): closest matches first, and among equally close ones the better-known games.

Roadwarden
Shared: Adventure · Indie · Interactive Fiction

Look Outside
Shared: Horror · Adventure · RPG

Tales of the Black Forest
Shared: Indie · Horror · Adventure

To the Moon
Shared: Indie · Adventure · Interactive Fiction

The Life and Suffering of Sir Brante
Shared: Interactive Fiction · Indie · Choose Your Own Adventure

OMORI
Shared: Indie · Horror · Pixel Graphics

Milk inside a bag of milk inside a bag of milk
Shared: Horror · Interactive Fiction · Adventure

Dagon: by H. P. Lovecraft
Shared: Horror · Lovecraftian · Interactive Fiction

Pocket Mirror ~ GoldenerTraum
Shared: Adventure · Horror · RPG

Ib
Shared: Indie · Horror · Pixel Graphics

Omen Exitio: Plague
Shared: Indie · Interactive Fiction · Adventure

Buddy Simulator 1984
Shared: Indie · Horror · Pixel Graphics

Welcome to Elderfield
Shared: Horror · Adventure · RPG

A Bird Story
Shared: Indie · Adventure · Interactive Fiction

The Witch's House MV
Shared: Indie · Horror · Adventure

Suzerain
Shared: Interactive Fiction · Choose Your Own Adventure · Text-Based

UnderMine
Shared: Indie · Dungeon Crawler · Adventure

There Is No Game: Wrong Dimension
Shared: Indie · Adventure · Pixel Graphics

Darkest Dungeon®
Shared: Dungeon Crawler · Lovecraftian · RPG

Hammerwatch
Shared: Indie · Dungeon Crawler · Adventure

Stories Untold
Shared: Adventure · Horror · Indie

Noita
Shared: Indie · Dungeon Crawler · Pixel Graphics

CARRION
Shared: Indie · Horror · Pixel Graphics

Sorcery! Parts 1 and 2
Shared: Adventure · Indie · Choose Your Own Adventure