2048 is the number-merge puzzle that turned a simple rule into an obsession: swipe the grid, matching tiles fuse into bigger ones, and the board fills a little tighter with every slide. The math is elementary; the discipline is not. Keeping your big tiles anchored while the small ones pile up is where the real strategy lives.

What makes it endure is the clean loop of tension and payoff, each merge buying room and threatening to run out of it at once. It is free, plays instantly in the browser, and needs no download, which is exactly why it swallows spare minutes so easily. If you like tidy systems with a devilish squeeze, line up your tiles and see how far the chain climbs.