Last updated: November 9, 2026

1. Who can use Puzzle Arsenal

You must be at least 18 years old (or the age of majority where you live). Each account belongs to one person. You're responsible for everything that happens under your account, so keep your login private.

2. What you're buying

Each builder or theme is a one-time purchase that gives you lifetime access to it in the Hub, for as long as we offer the Services. You're buying a license to use the software, not the software itself. Puzzle Arsenal's builders, puzzle engines, art, layouts, guides and videos stay our property.

3. Your Personal Publishing License

When you buy a builder, we give you a personal, non-exclusive, non-transferable license to use it to create puzzle books that you publish yourself.

You may:

• Create puzzle books with the builders you own and publish them under your own name or your own pen names.
• Sell those books for profit through your own publishing accounts, such as your own Amazon KDP, Etsy, website or store accounts. You keep 100% of your royalties.
• Edit the stories, characters, titles and wording the builders let you change, and add your own covers and front pages.
• Use your own books in your own marketing, such as ads, social posts and samples.

You may not:

• Create books, interiors or puzzles for anyone else, whether paid or free. This includes done-for-you books, ghost publishing, client work and books made for a business you don't own.
• Sell, give away or license the puzzles, interiors, PDFs or page images you create to other publishers, including as PLR, templates, bundles, "ready to publish" packs or course bonuses.
• Offer a puzzle book creation service, agency or freelance gig that uses Puzzle Arsenal.
• Provide or share access to your Hub account with others.
• Copy, resell, rent, reverse engineer or rebuild any part of Puzzle Arsenal, or use it to create a competing product. Our puzzle designs, layouts and art are original to us and remain our property.
• Use bots, scripts or automation to generate books, or scrape the Services.

4. Studio License (making books for others)

If you want to create puzzle books for clients, other publishers or a business you don't own, you need a Studio License. We offer Studio Licenses from time to time. Contact us through the support desk before you start any client work, and we'll talk it through with you.

5. Fair use

The builders are made for individual self-publishers. To keep Puzzle Arsenal fast and fair for everyone, we may set a monthly limit on how many books each account can export from each builder. Any current limit is shown in the Hub. We may also review accounts with unusual activity, such as very large numbers of exports, logins from many places at once, or books published under many different author names.

6. Your books and your responsibilities

You're the publisher of every book you create, so you're responsible for its title, cover, description, keywords and anything you add to it. You must follow the rules of every platform you publish on, including Amazon KDP's content guidelines, and you must not use other people's trademarks or copyrighted material. We check every puzzle for exactly one solution, but you should review each book before you publish it.

7. Payments and refunds

Prices are in US dollars unless shown otherwise, and payment is due at checkout. Because you get instant access to digital software and files, all sales are final and we don't offer refunds. If you have a question before you buy, please contact us and we'll help you decide.

8. Breaking these Terms

If you break this license or these Terms, we may suspend or close your account and end your access to the builders without a refund. Books you published properly under this license before that time may stay on sale. We may also take other steps the law allows, including asking platforms to remove books made in breach of this license.

9. Changes to the Services and Terms

We improve the builders over time and may change, add or remove features. We may update these Terms. When we do, we'll post the new version here with its date. Using the Services after an update means you accept it.

10. Earnings disclaimer

Sales and royalty figures shown on our pages are estimates or examples from other publishers' books, used for illustration only. We don't promise that you'll earn any particular amount. Your results depend on your books, your marketing, the market and many things outside our control.

11. Disclaimers

The Services are provided "as is" and "as available," without warranties of any kind, express or implied, including fitness for a particular purpose or that the Services will always be available or error-free.

12. Limitation of liability

To the fullest extent the law allows, we aren't liable for any indirect, incidental, special or consequential damages, or for lost profits, revenue or data. Our total liability for any claim is limited to the amount you paid us in the 12 months before the claim.

13. Governing law

These Terms are governed by the laws of the Province of Ontario, Canada. Any dispute will be handled in the courts of Ontario.

14. Contact

Questions about these Terms or a Studio License? Contact us through the Support page.

Puzzle Arsenal, operated by Mainstream Ventures
www.MainstreamVentures.com