Sure! I've created a simple text-based game that can be played as an open-world adventure. It includes JavaScript code enclosed in script tags within a single HTML file. The game can be played on a smartphone using pictograms for a more engaging experience.
Please find the code below:
You can copy and save the code as an HTML file, open it in a web browser on your smartphone, and interact with the game by running the `move()` function with different directions.
Note: This is a basic structure to demonstrate the implementation of an open-world game. You can expand and customize it further by adding more locations, events, and actions based on your desired game mechanics.