As an AI, I can provide you with an example of a simple game implemented using JavaScript within a single HTML file. The game is a smartphone-based game utilizing pictograms. Please find the example below:
In this example, we have a simple game where pictograms are displayed on the screen. When a pictogram is clicked, its color is changed randomly using JavaScript. The `getRandomColor` function generates a random hex color code.
You can copy and paste the code into a single HTML file, save it with a .html extension, and open it in a web browser to play the game. When each pictogram is clicked, its color will change randomly. Feel free to modify and expand upon this example to create a more complex game if desired.