Mergeon

Mergeon, by Jelonman, takes the slide-and-merge idea of 2048 and makes it a daily game. The board is 5x5, one row and column larger than the classic 4x4, which gives more room to build. You swipe or press an arrow key, every tile slides as far as it can, and two equal tiles that meet merge into one of double the value.

The difference is the deal. In most merge games the tile that appears after each move is random for every player. In Mergeon both the value of the next tile and the empty cell it lands in are drawn from the UTC date, so the whole world plays the same sequence on a given day, and the game says "same deal worldwide today" above the board. That makes a score a fair comparison: if a friend scored more, they played the same tiles better.

Your score is the total value of your merges, and chaining several merges in one move adds a combo bonus. The run ends when the board is full with no move left. The end card shows your score, your best tile, today's best, your all-time best and a day streak, all kept in your browser with no account. Play again replays the same deal, and Challenge a friend copies a link with your score; whoever opens it sees a banner daring them to beat it.

It plays in the browser on itch.io, with arrow keys on a desktop and swipes on a phone, and a new deal starts at midnight UTC. It suits anyone who has played 2048 and wants one shared game a day to compare.