Sure! Here's an example of a simple text-based game implemented as a single HTML file using JavaScript and enclosed in script tags. This game assumes smartphone operation and uses basic pictograms:
This game involves a player finding themselves in a dark room and making choices to progress. They can either look for a light switch (option 1) or feel for a door handle (option 2). Depending on their choice, different outcomes and scenes are triggered until they either find a key on the table or escape the room.
Please note that this is a basic example and can be expanded upon to create a more sophisticated game.