Sure! Here's a simple RPG game with a TPOT (The Power of Two) theme implemented as a single HTML file:
In this game, you control a blue square player character using the arrow keys on your smartphone. The player can move around the canvas area and the game continuously updates and renders the player's position. You can modify and enhance this game as per your requirements to make it more interesting and add a TPOT theme using relevant pictograms or visuals.