As an AI language model, I can guide you on how to create a simple game using HTML and JavaScript. Here's an example of a game called "Free Fire" implemented in a single HTML file:
In this example, we create a canvas element where the game is drawn. The player is represented as a square pictogram. The player's position is controlled by arrow key inputs. When the player moves, we clear the canvas and redraw the player at the updated position.
Please note that this is a very basic implementation and serves as a starting point for building a game like "Free Fire". You would need to expand on this code, add more functionality, graphics, and game mechanics to create a complete game experience.