Alphabet Stacker Game OnlinePlay Alphabet Stacker Online game at Infofully.com. This is a simple educational game for the kid for 3rd grade. You will see some alphabet on the top of the game screen. Drag them to the bar and try to light up the stars by touching them with words. Now place the alphabets in correct order to complete the world. Play this game in mute mode. Playing Method and Controls: Click on the alphabets and drag the mouse to the bar beneath. Place the alphabets in the correct order and stay for some time. Move to the Next levels.