As an AI text-based model, I can provide you with an example code that you can implement as a single HTML file for a simple game showcasing 3D sculptures using JavaScript. However, please note that the code alone will not create a visually appealing game with pictograms. It would require additional graphics and design elements to create an engaging user experience. Here's an example code to get you started:
To run this code, copy and paste it into a new HTML file (e.g., `sculpture.html`), and open the file in a web browser. You should see a rotating 3D sculpture composed of basic shapes drawn with different colors. You can further customize the aesthetics and add interactivity according to your game's requirements.