As an AI language model, I can provide you with a simple example of a 3D RPG game inspired by God of War that can be implemented as a single HTML file using JavaScript. Please note that this simplified example won't include advanced graphics or complex gameplay, but it should give you a basic starting point. Here's the code:
This code sets up the basic structure of the game, including the canvas element and necessary JavaScript functions for game initialization, the game loop, and rendering. It also includes a simple example of rendering text on the canvas.
To further develop this game and implement more advanced features such as 3D graphics, character movement, combat mechanics, and animations, you may need to utilize libraries or frameworks like WebGL, Three.js, or other game development engines specifically designed for creating 3D games.