Double Up

Slide. Match. Double. Repeat.

Double Up is a fast, focused puzzle built around one simple rule: combine matching numbers to make bigger ones. Push every tile on the board in one direction — when two tiles with the same number touch, they merge into one. Keep merging, keep climbing, and see how high you can push your score before the board fills up.

How to play

• Arrow keys, swipe, or the on-screen buttons move every tile at once
• Matching tiles merge into their sum
• A new tile appears after every move
• No empty spaces and no merges left = game over
• Reach 2048 to win — then keep playing for a higher score

Features

• Clean, distraction-free puzzle design
• Works on desktop and mobile (touch + keyboard support)
• Score and best-score tracking
• No ads, no timers — just the puzzle

Good for a five-minute brain warm-up, or a "bet I can beat your score" rematch.