How much does it cost?

A project unlocks for $4.99, paid once. After that you can export the interior and solutions PDFs at any KDP trim, as many formats as you like, forever. There is no subscription.

What do I get when I export?

One print-ready 300 DPI interior PDF, sized for the KDP trim you choose. That interior is the single file you upload to KDP. You also get a separate solutions PDF, packed six to a sheet.

How many mazes can one book have?

As many as the trim and page count allow. A 120-page book is a normal maze book, and the studio will generate every page of it. The solutions pack six to a sheet at the back.

Are the answer keys reliable?

They are provable, which is unusual. A maze is carved as a spanning tree, so exactly one route joins the entrance and the exit, and the key is that route found by searching the maze itself. The key cannot disagree with the puzzle because it is derived from it.

Can I make a large-print maze book?

Yes, and it is worth doing. Large print is the fastest-growing format in puzzle books. For a maze it means thicker walls and wider corridors rather than bigger type, so the studio exposes wall weight as a setting alongside the trim.

Can I try it before I pay?

Yes. The free maze generator makes a real 2-page maze in your browser with no sign-up. The unlock is only for a full multi-puzzle project you plan to publish.

Do I own what I make?

Yes. The mazes and the PDFs are yours to publish and sell on Amazon KDP or print yourself. There is no royalty and no attribution requirement, and the per-project unlock covers unlimited exports of that project.

Publisher Studio

The KDP maze maker

Hundreds of graded mazes in one shape, at any KDP trim, print-ready at 300 DPI. The difficulty is measured, not guessed. Make one maze free in your browser, unlock a full project for a one-time fee, and export unlimited formats forever.

Open Publisher Studio Make one free first

$4.99 once per project. Unlimited exports, every trim. No subscription.

5 shapes, 12 of them silhouettes

Square, hexagonal, triangular and circular grids, plus mazes carved inside a heart, a star, a crescent moon or a cat. A shape is a different book, not a preference. It is what makes a listing image worth clicking.

Difficulty that is measured

Size is not difficulty. A big grid whose route runs down one edge is an easy page, so every maze is measured on how far its route travels and how deep its wrong turns go, and re-rolled if it does not earn the grade on its page. 11 corridor textures set how that difficulty feels on paper.

Every KDP trim, 300 DPI

Pick any of KDP's 17 trim sizes, from 5.06 by 7.81 up to 8.27 by 11.69, with correct margins and gutter. Large print is a setting too: for a maze that means thicker walls and wider corridors rather than bigger type.

How it works

1Try a free maze. Use the free generator in your browser to carve one maze and its answer, so you can see the output before you commit.
2Choose the book. Pick the shape every maze is carved on, how many you want at each grade, and the trim you are publishing at. A graded book climbs from easy to evil page by page; a mixed one interleaves them.
3Generate. The studio carves every maze, solves it, and measures the result. A page that does not earn its grade is re-rolled rather than printed, so "hard" means the same thing on page 3 and page 97.
4Unlock once, export any size. Unlock the project for $4.99, then export the print-ready 300 DPI interior and solutions PDFs at any trim, as often as you like.

Free tool or full studio

The free generator makes one printable maze to try the engine, and you can browse printable mazes by shape and age. Publisher Studio is where you make a book to sell.

Free generator	Publisher Studio
One maze and one answer page	Hundreds of graded mazes with a solutions section
Printed from the browser	Every KDP trim, 300 DPI, print-ready PDFs
One shape and size at a time	A graded curve across 5 shapes and 11 corridor textures
Nothing is saved once you close the tab	A durable project, re-export any size forever ($4.99)

One price, per project

$4.99

Paid once. Export unlimited formats, forever.

Print-ready 300 DPI interior PDF
Separate solutions PDF
Every KDP trim size and format
Re-export any size, any time

Open Publisher Studio

Comparison

Once Books vs Book Bolt

A purpose-built puzzle-book maker you pay for once, versus an all-in-one KDP suite on a subscription.

Questions

How much does it cost?: A project unlocks for $4.99, paid once. After that you can export the interior and solutions PDFs at any KDP trim, as many formats as you like, forever. There is no subscription.
What do I get when I export?: One print-ready 300 DPI interior PDF, sized for the KDP trim you choose. That interior is the single file you upload to KDP. You also get a separate solutions PDF, packed six to a sheet.
How many mazes can one book have?: As many as the trim and page count allow. A 120-page book is a normal maze book, and the studio will generate every page of it. The solutions pack six to a sheet at the back.
Are the answer keys reliable?: They are provable, which is unusual. A maze is carved as a spanning tree, so exactly one route joins the entrance and the exit, and the key is that route found by searching the maze itself. The key cannot disagree with the puzzle because it is derived from it.
Can I make a large-print maze book?: Yes, and it is worth doing. Large print is the fastest-growing format in puzzle books. For a maze it means thicker walls and wider corridors rather than bigger type, so the studio exposes wall weight as a setting alongside the trim.
Can I try it before I pay?: Yes. The free maze generator makes a real 2-page maze in your browser with no sign-up. The unlock is only for a full multi-puzzle project you plan to publish.
Do I own what I make?: Yes. The mazes and the PDFs are yours to publish and sell on Amazon KDP or print yourself. There is no royalty and no attribution requirement, and the per-project unlock covers unlimited exports of that project.