Sure! Here's a sample RPG game implemented as a single HTML file, using JavaScript and enclosed in script tags. The game is designed for smartphone operation and uses pictograms for graphics. You can play it as a finished game.
In this example, the RPG game utilizes a canvas element for rendering the game graphics. The player can control the character's movement by touching the screen. The game loop continuously updates the game state and redraws the canvas to reflect any changes. You can add more game elements and logic as needed to make a complete RPG game.