100
Progressive puzzles
The challenge grows as you move through the book.
CRAB Digital Playable Book
The One Word Challenge — built to play in your browser.
Find CRAB across 100 progressive puzzles, track your progress, and play from your phone, tablet, or computer. No app. Not a PDF.
Introductory launch price
$4.99
One purchase unlocks the Digital Playable Book through your unique license key.
What you get
A complete playable book, not a download you print yourself.
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Browser-based play
Open CRAB on a compatible phone, tablet, or computer without installing an app.
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Saved progress
Your progress is saved in the browser you use to play.
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Touch-friendly controls
Designed for touch screens as well as computers.
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Optional coordinates
Use coordinates when you want guided or shared play.
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Protected access
Your unique Payhip license key verifies your purchase before CRAB opens.
How access works
Buy. Verify. Play.
1
Buy CRAB Digital
Checkout securely through Payhip.
2
Receive your key
Payhip provides the unique license key tied to your purchase.
3
Open play.wordbo.com
Enter the key once to verify the browser and begin playing.
For browser or lost-key help, visit Wordbo Support.
See the experience
From purchase verification to the puzzle itself.
Verify your purchase with your unique key.
Open the playable book directly in your browser.
Play through the progressive CRAB puzzles at your own pace.
CRAB is available three ways
Choose how you want to play.
CRAB began as a print challenge, has an ICE Edition for coordinate-based participation, and now has a Digital Playable Book for browser play.
CRAB Print
The physical One Word Challenge book.
Buy Print Book
CRAB ICE
The same physical book with coordinates added around the puzzle grid for shared participation.
Buy ICE EditionCRAB Digital
The browser-based version with interactive controls and progress tracking.
Get Digital — $4.99