Sure! Here's an example of a simple text-based game implemented as a single HTML file with JavaScript. Please note that this is a simplified version and doesn't include pictograms or smartphone-specific features.
To play the game, simply open the HTML file in a web browser. The game will start automatically, and you'll be presented with different options and prompts to progress through the story. The primary objective is to find the key and escape from the house.
This is a very basic example to give you an idea of how to structure a game using JavaScript within an HTML file. You can enhance and customize it further based on your preferences and gameplay requirements.