About this app
21 Black is a challenging puzzle game that mixes solitaire and blackjack. Your goal is simple: merge the cards to make 21. How far will you get? 21 Black Features SIMPLE GAMEPLAY Swipe to merge the cards horizontally or vertically, different numbers add up while identical numbers stay the same. Get to 21 and win! ENDLESS MODE Relax in endless mode and see how many 21's can you make PUZZLE MODE Choose from multiple puzzle sizes and collapse the entire board into a single 21. Perfect for training your brain to recognize patterns and build new strategies. SHARE + DISCOVER Played a cool puzzle? Share it with your friends and the world! Or scan puzzles other's have discovered with the built in puzzle camera scanner! NO STRESS Unlimited free hints and no time limits means you can relax and get into a flow 100% FREE That's right, everything is unlocked and there is nothing to purchase Fun and addicting gameplay that's guaranteed to test and train your brain in new ways! Questions? Please contact us at contact@bitfreegames.com
Latest release
What’s New
+Bug fixes
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 13, 2026 · 9:11 PM Free
Screenshots
