Block 21

Tip: with the Sidecade extension you can keep playing Block 21 while you browse other sites.

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About Block 21

Tap/click on a group of three or more blocks with the same color. Get block 21. Have fun!

How to play

Tap the screen or click the mouse

Category
Puzzle
Price
Free, plays in your browser

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Play Block 21 on any website

Sidecade is a free Chrome extension that opens games in a floating window over whatever you're browsing. Press Alt+J and you're playing, without switching tabs.

Add Sidecade to Chrome
Sidecade extension floating game window