From website:
The Solitaire Dungeon Design & Maze Master's Guide gives you everything you need to design your own random Solitaire Dungeons & Mazes. The book is System Neutral, and so is easy to use with any game system for which you want to design your own solitaire mazes for solo play.
The book is arranged to highlight every consideration of Maze Design, including the dungeon theme, key locales, the villain and his lair, creatures, traps, tricks, treasures, the method for random mapping, miniatures, and much, much more. Fully supported with a complete set of 20 gaming aids and templates, I will walk you through every feature available for designing the ultimate dungeon (or megadungeon!) to challenge even the most die-hard adventuring party.
Designed for the game master who wants to play solo, but also perfect for creating an immersive world for a gaming group, the Dungeon Design & Maze Master's Guide gives you everything you need for designing a dungeon on the fly, providing surprises at every turn so that even the Maze Master never knows what dangers are coming next.