The 2048 game extension is now an extension that you can play anywhere, anytime! The 2048 in popup puzzle game is on your Opera browser, and it's free! 2048 puzzle is a game where you slide tiles on a grid to combine them to create a 2048 tile. When two tiles with the same number touch, they merge into one. You play the free 2048 extension popup by using your arrow keys to move the tiles. Please note that this version of the classic 2048 extension is a ported extension and the original developer is @Gabriele Cirulli on Github.