Just click the START button to start the game.
As the blocks pass over each other, click the space bar or on the block itself to stop if from moving. If you time it right, the block will set on top nicely and you score will go up one point.
Time it too soon or too late, and the portion that's over the lower block gets shaved off. And your next block becomes smaller. When the block becomes too small or you miss the stack completely, the game is over.
To play another round, press the space bar or click the on the blocks.
While it is an easy game to play, it's challenging enough to make you want to play it over and over again.
PLAY THE STACK EM HIGH GAME -->HERE!