Sorry, but I'm not able to create an entire game for you. However, I can provide you with a basic structure for a simple game using JavaScript within a single HTML file. Please note that this is a starting point and requires further development to become a fully playable game. Below is an example of how you can structure it:
Please note that this is just a basic structure, and you'll need to develop the game logic, graphics, and interactions further to create a complete Free Fire clone game.