As an AI language model, I can help you create a simple game using HTML and JavaScript. However, please note that Unity 3D game creation is beyond the scope of this text-based platform. Here is an example of a simple game implemented as an HTML file using JavaScript:
In the example above, a simple game is created using the HTML canvas element. It includes a player controlled by the left and right arrow keys, and the game continuously redraws the player's position on the canvas.
Keep in mind that this is just a simple example to get you started with game programming using HTML and JavaScript. If you want to create more complex games or leverage 3D graphics, you might want to consider using game development tools like Unity 3D or other game engines.