If you’re looking for a new way to create puzzle books for Amazon KDP or digital printables, Shigai Royalty is a tool worth checking out.
Unlike traditional puzzle-book creation, where you may need to spend hours creating puzzles, writing clues and formatting pages manually, Shigai Royalty is designed to automate much of the process.

What Is Shigai Royalty?
Shigai Royalty is a cloud-based mystery puzzle creation system designed to generate Murdoku-style whodunit logic puzzles.
The concept combines the excitement of a murder mystery with logic-grid puzzle mechanics. Users can select settings such as difficulty, grid size, suspects and rooms, then generate a complete mystery case.
According to the sales page, each puzzle is verified to have a single solution, helping make the generated puzzles suitable for publishing and solving.
What Can You Create With It?
One of the most interesting features is that the system is designed specifically for people who want to create books and printables.
Some of the highlighted features include:
- Mystery and logic puzzle generation
- Multiple difficulty levels
- Grid sizes from 6×6 to 16×16
- Custom suspects and rooms
- Hints and step-by-step solutions
- Built-in page design
- Bulk book generation
- PNG and PDF export options
- Cloud-based access with no software installation
- Support for multiple languages
- Commercial rights for generated books
The tool is also designed with Amazon KDP publishers and printable sellers in mind.