Turn A Simple "Whodunit" Grid Into Evergreen Amazon Royalties — Without Writing A Single Word
// Press play. Watch a complete mystery puzzle book — suspects, clues, solutions — get built in minutes, not months.
- Every puzzle verified to ONE solution
- No writing. No design skills. No plotting.
- 5 difficulty levels — Easy to Dragon 🐉
- Grids from 6×6 up to 16×16
- Sell on Amazon KDP AND as printables
- 8 book languages built in — English to Polish
- 2 artwork packs — Illustrated + Flat Avatar
- Unlimited PNG exports built in
- Cloud based — nothing to install
- Full commercial rights on every book
Members Of Our Past Tools Are Pulling Royalties Right Now.
// Regular people. Simple books. Free buyer traffic. Anyone can pull royalties when the tool does the heavy lifting. Results vary.
// "Nice start to today on Etsy... 13 sales." — a member, before lunch, selling murder mystery printables. Results vary.
We Break Down The Walls. We Crush The Barriers. They Walk Through.
// Real members of our past tools, unprompted, in our private groups. All our tools help people earn online — even complete newbies.
// "I published 10 since 7 July... I’ve sold 146." — Alice, member
You've Been Told To Publish Into Dead Niches.
Word search book number 4,000. Sudoku book number 9,000. Coloring book number who-even-knows.
You followed the "proven" advice. You published where everyone else published. And your book landed on page 50 of Amazon, next to ten thousand identical covers, earning nothing.
Sound familiar?
That's not because you did it wrong. It's because the niche was already gone before you got there.
The publishers you just saw in File 01 aren't smarter than you. They got to a hungry niche while the shelf was still empty.
Right now — today — the mystery logic puzzle shelf is that empty shelf.
👀 Real Amazon data — this shelf is moving right now
Live listings today — buyers are already searching
And this is what your shelf-filler looks like. The cover is easy. Only the puzzles were ever the hard part.
How easy? Watch the built-in Book Cover Studio design a full KDP cover — back, spine and front — right in front of you.
OBJECTION CHECK: "But I can't write mysteries." — Nobody writes anything. "No time." — It's a few clicks. "Not technical." — It's cloud based, point-and-click. "Can I trust you?" — You just read the receipts. Overruled. Keep reading.
I Was Publishing Into A Wall.
I'm Ike Paz, and I had trouble with oversaturated KDP puzzle niches.
Every book I pushed out landed in a graveyard of lookalikes. Same puzzles. Same covers. Same page 50 of the search results.
I tried the usual stuff. New keywords. New covers. "Underserved" sub-niches that had 3,000 books in them by the time I published. Freelancers who charged premium prices for puzzles I couldn't even verify were solvable.
Then my friend Luke Bowes created an easy and simple way to completely obliterate the oversaturation problem — a machine that builds a puzzle type almost nobody else CAN publish.
Now it's a breeze. I pick a difficulty, name my suspects, press a button — and out comes a verified, single-solution mystery book that doesn't have ten thousand twins on Amazon.
This page is me handing you that same machine.
You Do Not Need To Be A Mystery Writer.
// You need a system that turns one simple grid into books buyers finish in a weekend — and come back for more.
Here is the secret nobody in the KDP world is talking about yet.
There is a puzzle type buyers are hungry for that almost nobody is publishing: the story-driven logic mystery. A mansion. A cast of suspects. True statements as clues. One room holding the victim.
The solver places every suspect by pure deduction — and whoever ends up alone with the body is the culprit.
It feels like a murder mystery. It solves like a sudoku. And it sells like both.
The same two pages, as a buyer holds them — grid on the left, case on the right
☞ These pages came straight out of the system you're about to see. One tool. Five difficulties. Every puzzle verified to exactly one solution. Puzzles become books. Books become a catalog. A catalog builds royalties.
The Secret Is The Deduction Engine.
// Why this works when everything else drowned in competition.
Making these puzzles by hand is brutally hard. Every clue has to be true. Every board needs exactly one answer. One sloppy clue and your buyer hits a dead end, leaves a one-star review, and your book is finished.
That wall is what keeps your competitors out — and it's the wall this system walks straight through.
The engine builds each case mathematically, then verifies every single puzzle has exactly one solution, reachable by pure deduction. No guessing. No broken boards. No angry reviews. Ever.
Hard for humans. Instant for the engine. That gap is your moat.
Second 0 — you press GO. Seconds later: built, solve-checked, print-ready.
Weeks Of Work. Zero Certainty. Case Closed.
PLOT.
Spend days inventing suspects, alibis and clue chains by hand — then discover your "logic" has two possible killers, and start over.
WRESTLE.
Fight Canva or Word into making grids, clue cards and solution pages line up. Pay a freelancer if you give up — and hope they got the logic right, because you can't check it.
PRAY.
Publish one book after weeks of work and pray no buyer finds the broken puzzle on page 31.
| Manual Work | Outsourcing | Patchwork Tools | The Simple System | |
|---|---|---|---|---|
| Time per book | Weeks | Weeks + revisions | Days of duct tape | Minutes |
| Cost per book | Your evenings | Premium fees, every time | Multiple subscriptions | One-time access |
| Verified solvable? | ✕ Hope so | ✕ Can't check | ✕ Not this puzzle type | ✓ Every single one |
| KDP-ready layout | ✕ DIY | ✕ Extra fees | ✕ Manual resizing | ✓ Built in |
| Scale a catalog? | ✕ Burnout | ✕ Costs multiply | ✕ Breaks down | ✓ Bulk mode |
Shigai Royalty is the only cloud-based engine that builds complete, Murdoku-style whodunit puzzle books — the mansion, the suspects, the clues, the hints and the step-by-step solutions — with every single puzzle verified to have exactly one solution.
Designed from day one for Amazon KDP publishers and printable sellers. No writing. No design software. No logic degree.
Pick your settings. Press the button. Publish the case.
Three Steps. Whole Books.
CREATE.
Choose your difficulty (Easy to Dragon 🐉), grid size (6×6 to 16×16), cast and rooms. Click generate. The engine builds and verifies the whole case — puzzle, clues, hints and solution walkthrough.
The real dashboard — pick settings, the engine does the rest
EXPORT.
The page designer handles margins, fonts, KDP trim sizes and legends. Bulk mode fills a whole book in one pass. No formatting fights. No resizing headaches.
Every popular KDP trim — incl. full-bleed — built in
COLLECT.
Upload to Amazon KDP as a paperback, or sell the same book as a printable on Etsy-style platforms. Amazon prints, ships and pays — you keep 100% of your royalties.
This is the part everyone waits for — Amazon pays out
You upload once. Amazon does the printing, the packing and the paying. Results vary.
CREATE. EXPORT. COLLECT. REPEAT. Every case is fuel for the royalty engine.
Six Books You Could Start Tonight.
Classic Murder Volumes
The flagship: "Find the Killer" books, from cozy 6×6 cases to monster 16×16 finales for hardcore solvers.
Heist & Thief Hunts
Switch to The Heist mode and publish "Find the Thief" books — same addictive logic, family-friendly angle.
Personalized Gift Books
Upload photos, name the cast after friends or family, and print one-of-a-kind gift mysteries people keep forever.
Difficulty-Ladder Series
Book 1 easy, Book 5 Dragon. Series buyers who finish one volume come straight back for the next.
Etsy & Printable Packs
The exact same exports sell as instant-download printables — game nights, party packs, classroom brain teasers.
Themed Custom Worlds
Rename the rooms, recast the suspects: office mysteries, cruise-ship capers, haunted hotels. Your imagination, their addiction.
Members Keep Hitting Publish.
// The casebook above isn't theory — members post these in our private group the moment they hit publish. Real books, hot off the engine. Results vary.
// "Really enjoying what this tool can do. Thank you to Luke and Ike." — posted with her finished book, 29 likes and counting
Everything The Engine Does For You.
Verified Deduction Engine
Classic whodunit generation, 5 solver-calibrated difficulties, grids 6×6 to 16×16 — every board mathematically verified to one solution.
The core others can't copyCustom Casts & Rooms
Names, genders, preset portraits or your own photo uploads, plus custom room names. Every book — and every niche — yours alone.
Infinite nichesHints + Walkthroughs
A hints ladder and step-by-step deduction walkthroughs on every solution page. Buyers never get stuck — so they finish, review and rebuy.
Review protectionHow-to-Solve Tutorial
One click drops a worked-example spread into your book — a real verified 4×4 mini-case solved step by step.
One-click onboardingFull KDP Page Designer
Margins, fonts, trim sizes, difficulty badges, CAN-OCCUPY/BLOCKED legends, drag-to-place grids — plus bulk generation for whole books.
Publish-ready outputFlexible Exports
Print-ready PDF plus unlimited high-res PNG — KDP paperbacks and printable marketplaces from the same click.
Two income rails8 Book Languages
English, Spanish, French, German, Italian, Portuguese, Dutch and Polish — all included. The engine verifies every case in English, then re-renders every clue in your buyer's language.
Eight Amazon markets2 Artwork Packs Included
Two complete visual identities ship with your copy — the classic Illustrated look and the clean Flat Avatar style. Pick per book, per niche.
Two looks, day one
The LIVE interface — a whole book taking shape
Bulk mode: set the page count, hit queue, done
Three Things The Engine Learned This Week.
// New in this build — included free with your copy. No upgrade needed.
Voice ControlJUST ADDED
Stop hunting through menus. Say what you want and the engine does it. "Make it a 9 by 9 grid." "Six suspects, Victorian manor." "Bump the difficulty to hard." The build changes while you're still talking — and every case still comes out verified to exactly one solution.
Custom CharactersJUST ADDED
Type a name, give them a role, and they walk into your mansion. Build a cast that fits your niche instead of the one the software picked for you — cosy village bakers, Victorian staff, holiday guests, whatever your buyer already searches for. The whole cast is yours.
Swap The FurnitureJUST ADDED
Every object in every room can be changed. Swap an armchair for a steamer trunk, a wardrobe, a grand piano — and the engine instantly re-verifies that the puzzle still has exactly one answer. You redecorate; the logic protects itself.
Join Today And These Come Free.
// Launch-window only. When the timer ends, the bonuses leave with it.
PDF Page Mover
Reorder, insert, swap and delete pages inside any PDF interior — fix a book without rebuilding it.
$97 VALUE — FREEKDP Keyword Finder
Find the exact search terms buyers type on Amazon and fill all 7 KDP keyword slots in minutes.
$197 VALUE — FREEDescription Helper
Write your Amazon book description fast — a listing that reads sharp, without the blank-page slog.
$97 VALUE — FREEQR Book Generator
Make a QR code that points straight to your book or your offer — turn back-matter pages into traffic.
$47 VALUE — FREEBest Amazon KDP Research Tool And Niche Revealer
Our go-to research weapon. Uncover hungry KDP niches and see exactly what's already selling — before you build a single page. Point it at any market, and the niche is revealed.
$197 VALUE — FREEThe Full Case, Itemized.
Open Your First Case Today
You are NOT paying anything close to $5,114. Your discounted launch price is waiting on the next page — and it only moves in one direction from here: UP.
YES! Give Me Shigai Royalty Now
This Is NOT For Everyone.
NOT for people hunting a magic overnight-money button. Real books, real platforms, real work — results vary.
NOT for people who won't follow simple step-by-step instructions.
NOT for publishers happy grinding it out against ten thousand competitors.
NOT for people who refuse to invest even a small amount of time up front.
Still here? Good. Then know this: everything you create is 100% yours — full commercial rights, no lock-in, no recurring fees on this offer, no hidden charges. You keep every cent of every royalty. Your tool. Your books. Your control.
Two Clocks Are Running. Neither Is A Gimmick.
Clock one: the price. This is launch-window pricing. Every time the timer resets, the price climbs — and it never comes back down.
Clock two: the shelf. Every member who joins before you is filling the mystery puzzle shelf ahead of you. The publishers who got into word searches early ate for years; everyone after fought for scraps.
Thirty days from now, one of two things is true. Either nothing changed — same niches, same page 50, same zeros... or there's a shelf of mystery books with your name on it, on a shelf almost nobody else can stock.
Same thirty days either way. The only variable is what you press today.
☞ Quick gut check: Would you rather publish against ten thousand competitors — or ten? Would a book buyers can't put down sell better than one they skim? If a machine did the plotting, logic, layout AND proofing... could you handle the clicking? You already know.
Got Questions? Answered.
Do I need writing or puzzle-design experience?
None. The engine generates the cases, clues, hints and solutions. You pick options and press buttons.
Is every puzzle really solvable?
Every board is mathematically verified to have exactly one solution, reachable by pure deduction — before it ever reaches your book. No broken puzzles, no guessing, no angry reviews.
Is the software cloud based?
100% cloud based. Nothing to download or install. Works on Mac, PC and any modern browser.
Do I own what I create?
Yes — full commercial rights on every book, page and puzzle you export. Keep 100% of your royalties.
Where do I sell these books?
Amazon KDP as paperbacks — Amazon prints, ships and pays you. The same exports also sell as digital printables on Etsy-style marketplaces. Two income rails per book.
Do I need a website or email list?
No. You publish on marketplaces that already have millions of buyers searching daily.
How fast can I make my first book?
The engine builds a verified case in moments and bulk mode fills whole books in one pass. Many members finish their first export-ready book the very same day they log in.
Are there monthly fees?
No recurring fees on this offer. One purchase, yours to use.
Which languages can my books be in?
Eight, all included: English, Spanish, French, German, Italian, Portuguese, Dutch and Polish. The engine always verifies the logic in English, then re-renders every clue in your chosen language — so uniqueness is never affected and you can publish into eight Amazon markets from one build.
What do the exports include?
Print-ready PDF plus unlimited high-res PNGs — puzzles, hints pages, solution walkthroughs and the How-to-Solve spread, sized for KDP trims.
What if I get stuck?
Luke and I are personally in the member group every day. Our support is the thing members brag about most.
Why isn't Amazon flooded with these already?
Because hand-building verified logic mysteries is brutally hard. That difficulty kept the niche empty — the engine removes it for you and leaves it in place for everyone else.
Is there a money-back guarantee?
Due to the digital nature of the product and instant access to the software, training and bonuses, all sales are final. Full training and top-notch support are included to help you succeed.
Close This Page, Or Close Your First Case.
You've seen the empty shelf. You've seen the receipts. You've seen the engine that fills it.
A fresh niche. A verified engine. Full commercial rights. Launch bonuses. A launch price that climbs when the clock resets.
The mansion is open. The case is yours.
We built this because we needed it ourselves — and we're in the member group every day with the people using it. See you inside.
P.S. The mystery puzzle shelf is empty today. It will not be empty in six months. The only question is whose books are on it — yours, or someone else's.
P.P.S. Every puzzle verified to ONE solution means no broken books, no refund-hungry buyers, no one-star landmines. This engine protects your reviews while it builds your catalog.
P.P.P.S. The timer above every button is live. When it resets, the launch discount and all three bonuses go with it. You've read this far — you already know what to do.