Sure, here's an example of a simple virtual world game using JavaScript and HTML:
Welcome to Turtle Island!
Use the arrow keys to move the turtle.
This simple game sets up a virtual world called "Turtle Island" where a turtle can move within a designated game area using the arrow keys. The turtle is represented by a green circle, and the player can control its movement within the boundaries of the game container. You can customize and expand upon this game by adding additional features, locations (such as Sandy Island, pizza place, shop, school, racetrack, arcade, laser tag, etc.), and interactions using JavaScript and HTML.