Blocks slide back and forth across the top of the screen. Tap, click, or press Space to drop each block onto the tower below. The overlapping part of your block becomes the new top layer, and the rest falls away. Stack as high as you can.
Mouse click, touch, or the Space key drops the moving block. Perfect alignment within a few pixels keeps the full width and builds a combo streak. Three perfect drops in a row rewards you with a slightly wider block.
StackNova is a one-tap arcade stacking game built with HTML5 and Canvas. It runs entirely in your browser with no download, no account, and no installation. Your best score is stored locally on your own device.