Block 21

About Block 21

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

Block 21 details

Category

Puzzles games

Platform

Web browser (HTML5)

Controls

Mouse, Touch

Price

Free to play

Players

Single player

Added

September 4, 2026

Tags & genres

• Block
• Brain
• HTML5
• Logic
• Puzzle

Frequently asked questions

How do you play Block 21?

Tap the screen or click the mouse

Is Block 21 free to play?

Yes. Block 21 is free to play on PlayyZone, with no payment, no account and no download.

What kind of game is Block 21?

Block 21 is a puzzles game. It is tagged block, brain, html5, logic, puzzle.

Can I play Block 21 on a phone?

Yes. Block 21 lists touch controls, so it can be played in a mobile browser as well as on a desktop.

Do I need to download or install Block 21?

No. Block 21 is an HTML5 browser game — it loads and runs in the tab you are already in, on a laptop, a phone or a tablet.