As an AI text-based program, I'm unable to create an actual 3D open world game within the constraints mentioned. However, I can provide you with a simple example of a text-based game using JavaScript that you can run on a website. Please see the code snippet below:
The game is a simple text-based adventure where you can move between different locations (Home, Forest, and River) by entering directions (north, south, east, or west). Each location has its own description, and the player's current location is displayed after each move.
Please note that this is a minimal example just to showcase the concept. It does not include advanced features or pictograms as requested. Implementing a full-fledged 3D open world game would be a significantly complex task requiring more advanced libraries and frameworks specifically designed for game development.