Sure! Here is an example of a simple merge game implemented as a single HTML file using JavaScript:
To play the game, simply open the HTML file in a web browser, and you will see the game board consisting of empty cells. You can use the arrow keys on your smartphone to move the tiles in their respective directions (up, down, left, right). The goal is to merge tiles with the same numbers to get to the highest possible number (2048 in this case). Good luck and have fun!