How To Make Amazon KDP Puzzle Books (Even in High-Demand, Low-Competition Niches)

If you’ve ever wanted to create and sell your own books on Amazon, Kindle Direct Publishing (KDP) is one of the easiest ways to start. Thousands of people publish journals, activity books, and puzzle books every month. The puzzle book market is full of hidden gems — low-competition niches where you can still make good sales. If you’ve ever dreamed of creating word search or sudoku books, tools like our Word Search Generator can help you create puzzles quickly and professionally.

What Is Amazon KDP?

Amazon KDP lets anyone publish a book — from storybooks to activity books — completely free. Once your book is uploaded, Amazon prints and ships it whenever someone orders a copy. You earn royalties (usually around 60%) on every sale, which can contribute to a growing side income stream or even a small publishing business. Learn more about KDP here.

With Amazon KDP, you can track your earnings and see which books perform best. By understanding your royalty revenue, you can make good estimations about which niches or puzzle types are most profitable.

Why Puzzle Books Sell So Well

• They train the brain and improve focus, making them valuable educational products.
• They provide relaxation and entertainment, increasing their appeal to a wide audience.
• They make excellent gifts and classroom resources for students, creating repeat buyers.
• They appeal to both children and adults, expanding your potential revenue base.
• By creating and selling multiple books, you can create a consistent income stream (passive income)!

In my experience, you have to research niches well to find profitable categories with low competition but medium to high demand. I tried to make some books without research and got absolutely no sales. So a good tip is: research is key!

How to Use the Word Search Generator

On WordGenFree.com, you can create unlimited custom puzzles in minutes:

1. Go to the Word Search Generator.
2. Enter your words — for example, “Rainforest Animals” or “European Capitals”.
3. Pick your grid size (10×10, 15×15, 20×20, or 25×25).
4. Click Generate to instantly make your puzzle.
5. Copy or screenshot your puzzle to use in your book layout.
6. Consider testing different grid sizes to see which layout is most engaging for readers, which can affect sales and royalties. (I created and formatted my puzzle in around 45 minutes; you can use AI to generate your words!)

Turning Your Puzzles into a KDP Book

1. Open Canva or Google Docs (or any formatting app or website you like) and create a document sized 8.5×11 inches (depending on the size you want your book to be).
2. Add each puzzle on its own page and format neatly for readability.
3. Include answers at the end of the book to enhance its value. Tip: make the answers smaller and maybe fit four on one page.
4. Create a professional and attractive cover to draw attention, as this influences potential sales and royalty revenue. Even though people say “don’t judge a book by its cover,” most still do.
5. Export as PDF and upload to KDP, then wait for approval! Don’t worry — approval is normally very easy if you have a relevant title and formatted your PDF or book cover correctly.
6. Monitor your sales dashboard to track earnings and understand your financial performance. After you understand it, you can create a few more related niches to the bestselling books you created.

Finding High-Demand, Low-Competition Niches

• Word searches for specific school subjects (e.g., Science Vocabulary, History Terms, or Camping)
• Audiences like campers, scouts, pet owners, or hobby enthusiasts
• Event-based topics (e.g., “Summer Camp Activity Word Search” or “Holiday Word Puzzles”)
• Educational themes like “Spelling Word Search for Year 5 Students” or “Math Terms Puzzle Book”
• Targeting specific niches can increase discoverability and revenue potential. Make sure your niche has high demand and low competition — this is SUPER important!

Another HUGE tip: even though niche research is very important, you must find keywords relevant to your niche. For example, if you made a camping word search book and then put “dog puzzles” in your keywords, it might pop up when people search “dog puzzles” instead of “camping puzzles.” Plus, you may even get rejected for that since it is very irrelevant.

Improving Your Sales and Income

• Use clean, readable puzzle layouts with solutions.
• Create professional covers that attract your audience.
• Include keywords in your title, subtitle, and wherever Amazon allows keywords. Try to fill all boxes; don’t leave any blank to improve visibility and potential sales.
• Build a puzzle series (Volume 1, 2, 3...) to encourage repeat purchases.
• Promote your books on Pinterest, Reddit, YouTube, and relevant Facebook groups to increase exposure.
• Regularly track earnings and performance metrics to identify which books generate the highest financial returns.

Why Using a Generator Helps You Succeed

• Save time creating puzzles, freeing you to work on multiple books and increase potential income.
• It looks modern, and our Word Search Generator is simple and easy to use.
• Experiment with new niche ideas quickly to identify profitable topics.
• Test multiple book concepts efficiently, helping you understand what generates consistent revenue.
• Build a scalable approach to self-publishing that could supplement or grow into a primary income source.

Budgeting and Financial Tips for Self-Publishers

• Using paid marketing (like ads) strategically to promote high-demand niches.
• Keeping track of your earnings and expenses to calculate net profit and assess return on investment.
• Reinvesting some earnings into creating additional books. Tools like Book Bolt (a paid tool) allow you to create word searches and have them formatted in minutes, helping you grow a substantial and successful business.

Final Thoughts

Creating puzzle books with a generator isn’t just fun (although it is fun to create and market them) — it’s a strategic way to generate additional passive income. Test creative ideas, target low-competition niches, and stay consistent — consistency is key! With a focus on quality and marketing, you can steadily increase your royalty earnings and build a small publishing business over time. Plus, when I sold my first book, I got a sense of accomplishment, which is super satisfying. Start today at WordGenFree.com.