Play the best free online sliding puzzle games on PrimaryGames. We have 36 cool games for your computer and mobile devices. Are you looking for free sliding puzzle games with no downloads? All of our games are made with HTML5. HTML5 games are cross-platform and work directly in any modern web browser, including on iOS and Android tablets and phones. These unblocked sliding puzzle games can be played instantly in your web browser - no downloads, no plug-ins and no registration required. No flash? No problem! All of the full screen games here run without flash. So, what are you waiting for? Grab your PC, smartphone or tablet and play the best sliding puzzle games right now.