2048 is a sliding-tile number puzzle: combine matching tiles to double their value and work your way up to the 2048 tile. Gabriele Cirulli built the original in 2014, and its mix of simple rules and deep planning has kept people hooked ever since. Rounds are short, so it fits a quick break on an Android phone or a desktop browser. This version is completely free, needs no app or sign-up, works offline, and saves your best score privately on your own device.
Every swipe asks you to plan a few moves ahead and read the board for setups that lead to big merges, which sharpens strategy and pattern recognition. Tracking where each tile lands keeps your working memory busy too.
PlanningPattern recognitionStrategyWorking memory
Built as a single HTML file, with no frameworks, no network calls, no tracking. Just DOM and CSS, vanilla JavaScript, light Web Audio sound effects, and your best score kept in localStorage. Fully offline, and it drops into any page via <iframe>.