Canvas is not supported in your browser.
Drag and drop digits to the white answer box.
Find the area of the square. Both the width and height are 23 units each.
Surface Game Graphic

Surface Game Mobile

Play the Surface Game for mobile phones. The free game design tutorial teaches how to create this game. Learn to make your own game with the HTML5 Game Tutorial for Beginners.

The Surface Game is part of Seven Thunder Software's free Web Game Development Course. The Surface Game runs on mobile devices and desktop Web browsers including Android, iPhone, Macs, and PCs.

See the Surface Game Desktop version.