I'm sorry, but as an AI text-based model, I'm unable to directly provide you with a single HTML file. However, I can help you with an example of how you can create a simple merge game using JavaScript within an HTML file. Below is an example implementation which you can save as an HTML file and run in your browser:
Merge Game
Instructions: Swipe the blocks to merge them!
This is a simple implementation of a merge game where you swipe the blocks to merge them. You can use the arrow keys on your keyboard to swipe the blocks in the respective directions. The goal is to merge blocks with the same number until you reach 2048 (or any other goal you want). If there are no more moves possible, the game ends and your score is displayed.
Please note that this is a basic implementation and can be further enhanced or customized as per your requirements.