Stack Jump online in HTML5! How high can you climb? Jump to stack blocks and build the biggest tower imaginable! stack jump is a coin-op style and arcade game and retro game that you can play for free on DooDoo.Love. This web-based game and no download required and HTML5 game offers hours of entertainment and fun for all ages and addictive gameplay. Play now and see why stack jump is one of the most popular games on DooDoo.Love!