As an AI text-based model, I can assist you in explaining the steps you would need to take to create a simple game resembling Kerbal Space Program using HTML and JavaScript. Below is an example of how you could structure the code in a single HTML file:
The code above creates a canvas element where you can render the game graphics. It also contains placeholder functions `drawRocket()`, `updateGame()`, and `renderGame()`. These functions should be filled with appropriate logic to implement the game mechanics, draw game elements, and update the game state.
Note that the code provided is a basic HTML template, and you will need to incorporate your game logic, event handling, and graphics according to your specific game requirements.