Sure! Here's a simple quest game implemented as a single HTML file with JavaScript. It is designed for smartphone operation and uses pictograms for better visual representation.
Please note that this is a basic example and can be expanded upon to create a more complex and engaging game.
When you run this HTML file in a web browser on your smartphone, you will see the game interface showing the current location2, inventory, and a message area. You can tap/click on the interface elements to interact with the game (e.g., to move between location2s, take items).
The goal of the game is to find the key and then reach the river location2 to open the treasure chest. If you try to reach the river without the key, it will prompt you to find the key first. Once you have the key and reach the river, you will win the game.
Feel free to enhance this code and add more features to create a more immersive quest game.