Sure! Here's a simple example of a 2D game maker implemented as a single HTML file with JavaScript:
You can copy and paste the above code into a single HTML file, save it, and open it in a web browser. The game canvas will allow you to control a blue square (the player) using touch input on a smartphone. The player's position will be saved and loaded using the saveGame() and loadGame() functions respectively.
Please note that this is a very basic example and can be expanded upon to create a more complete game maker with a user interface for creating game objects, levels, etc. But this should serve as a starting point for a simple 2D game maker with a save and load system.