Sure! Here's a simple text-based game implemented as a single HTML file using JavaScript, enclosed in script tags. The game is designed for smartphone operation and uses pictograms for the interface.
Choose Your Adventure!
In this game, when you open the HTML file in a web browser, you'll see the initial message "You're in the house. You hear the sound of something scurrying. What do you do?" displayed on the screen. You can then choose to either "Investigate" or "Grab a Gun" by tapping the respective buttons.
Based on your choice, a series of messages will be displayed, simulating the consequences of your decision. In the "investigate" path, you discover it was just a harmless mouse. In the "grab gun" path, you find it was just a stray cat. The game provides a simple adventure based on your choice.
Note: Since this is a text-based game, implementing pictograms might not be feasible within the constraints of a single HTML file.