Turn Whodunit Puzzles Into
Evergreen KDP Royalties
// The cloud engine that builds complete, verified mystery puzzle books in minutes — no writing, no design, no plotting.
// Plus my exclusive bonus stack: the niche vault, the repeat-buyer system and the second income rail the sales page doesn't teach you.
What Is Shigai Royalty?
Shigai Royalty is a 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 mathematically verified to have exactly one solution.
You pick a difficulty, name your suspects, press a button — and out comes a print-ready mystery book for Amazon KDP or Etsy-style printable marketplaces. Amazon prints, ships and pays; you keep 100% of your royalties.
And here's why this niche is a goldmine right now: word search book #4,000 and sudoku book #9,000 are dead shelves — your book lands on page 50 next to ten thousand identical covers.
The story-driven logic mystery shelf is the opposite: buyers are already searching for it on Amazon, and almost nobody is publishing it.
Why? Because building these puzzles by hand is brutally hard — every clue must be true, every board needs exactly one answer, and one sloppy clue means one-star reviews. That wall keeps your competitors out… and the engine walks you straight through it, verifying every single puzzle mathematically. That gap is your moat.
The publishers who got into word searches early ate for years — this is that same window, open today, on a shelf almost nobody else CAN stock.
My Exclusive Bonuses For You
From Daniele Melandri
// The engine builds the books. This stack builds the BUSINESS around them: endless sellable themes, repeat buyers, a second income rail, and a premium price tier — PLUS two private bonuses the vendor opened exclusively for my audience.
Mystery Worlds Vault GPT
Value: $67Free Today!
The engine asks you for suspects, rooms and a theme... but which theme actually sells? This custom GPT hands you complete, market-aware "World Packs" ready to paste straight into Shigai Royalty — so you never face a blank "New Case" screen again.
- Full cast of themed suspects + rooms + object swaps, paste-ready for the engine's custom features
- KDP-ready title, subtitle, 7 keywords, categories and back-cover blurb for every world
- A 5-book Difficulty Ladder series plan with every pack — the exact strategy that builds binge buyers
- Seasonal mode: holiday worlds timed to publish 6–8 weeks before the spike
Back Matter & Reader Loop GPT
Value: $67Free Today!
One sale is nice. A catalog customer is a business. This GPT writes the final pages of every book you publish — the ones that send finishers straight to your next volume, your reviews and your email list.
- "Case Closed" review-request page — warm, in-theme and 100% Amazon-compliant
- Next-volume teaser that makes starting the next case irresistible
- "Case Archive" catalog page + detective-style author's note
- QR free-gift page that turns readers into email subscribers — pairs perfectly with the QR Book Generator you get from the vendor
Etsy Printable Profits Pack
Value: $97Free Today!
The sales page tells you every book has "two income rails" — KDP and printables — but only teaches the first one. This pack IS the second rail: a complete guide + a dedicated GPT to sell your exports as instant-download printables on Etsy.
- The 6 printable formats that move: game night kits, party packs, classroom packs, mega bundles & more
- The 20-minute packaging pass that turns a raw export into a $12 product
- Pricing playbook, mockup formulas and Etsy SEO in one page
- PLUS the Etsy Listing Detective GPT: full listing — 3 titles, 13 counted tags, description, price — in 60 seconds
The Personalized Gift Mystery Goldmine
Value: $97Free Today!
A royalty pays $2–4. A personalized mystery — where the buyer's friends and family ARE the suspects, with their photos on the suspect cards — sells for $25–60. Same engine, same clicks, 10–20× the price. This guide is the full business-in-a-file.
- Six ready-to-sell editions: Birthday, Family Reunion, Christmas, Hen Party, Office Team-Building, Anniversary
- The intake templates that collect names, roles and photos without chaos
- The under-an-hour production line, step by step
- Listing copy skeletons + the 14-day quick start to your first custom order
ChatGPT Visuals Domination 2.0 — On The House
Value: Up to $997Free Today!
My own premium visuals system, ChatGPT Visuals Domination 2.0. Best selling product that sold 650+ copies, with less than 1% refund rate!
It teaches you 30 types of professional visuals you can create with ChatGPT alone, plus an interactive Web App that builds the perfect prompt for you. For a mystery publisher this is the missing piece: premium book covers, Etsy mockups that stop the scroll, and promo graphics for every case you publish.
ChatGPT Visuals Domination 2.0 — Full Access
Usually Sold For: $47Free Today!
Simply buy Shigai Royalty through my link and you'll get the complete ChatGPT Visuals Domination 2.0 system for free — the guide covering 30 visual types, the Prompt Builder Web App, and the video walkthrough.
The Complete VIP Bundle Upgrade of ChatGPT Visuals Domination 2.0
Usually Sold For: $127Free Today!
If you grab any 2 upsells of Shigai Royalty through my link, you'll also unlock the full ChatGPT Visuals Domination 2.0 VIP Bundle — 70 advanced visual types, a dedicated Pro Web App, 3 extra custom GPTs, 10,000 ready-to-paste visuals prompts, and 100 proven ways to monetize your visuals.
Chrome Extension "Kumo Amazo + Niche Signals"
Value: $127Free Today!
// Private bonus given to me by Ike Paz (the vendor) — only for my audience!A Chrome extension that analyzes Amazon search results and groups keywords into smart clusters — so you can instantly spot the trends and niche opportunities to aim your mystery puzzle books at.
- Highlights recurring phrases directly on the Amazon page — trends jump out at you
- One click to open new searches, copy all keyword ideas, or export them to CSV
- Perfect partner for your KDP keyword research on every new book
- No account required, no personal data collected — everything runs locally on your device
Chrome Extension "Swift Coloring Book Prompts"
Value: $127Free Today!
// Private bonus given to me by Ike Paz (the vendor) — only for my audience!A Chrome extension that helps you create AI prompts for coloring books and sell them online — a second KDP & print-on-demand income stream next to your mystery books.
- Generate detailed line-art prompts from your keywords in just a few clicks
- Choose whether to include backgrounds, and easily manage your ideas
- Save your favorite prompts (premium feature)
- Beginner-friendly — ideal for creating and selling AI-generated coloring books quickly
How To Claim Your Bonuses
Click any button on this page to go to the Shigai Royalty sales page through my affiliate link.
Complete your purchase through my link (this is required to qualify for the bonuses). Want the VIP tier of Bonus #5? Grab any 2 upsells from the funnel too.
After you complete the purchase through my link, log in to your WarriorPlus account and go to the "Purchase History" section (top right menu). Then click on the product name, and you should see the purchase details. There you'll find the "Access Affiliate Bonus" button. Click it to access the bonuses!
// If you have any issues accessing your bonuses, don't hesitate to reach out!
Need help? Contact me at support@dmelandri.com