Imagine a small command line game and design all specifications and UML diagram. I just need the specifications, UML diagram.. Not the code

The below link relates to an overview blog by Fred Williamson’s explaining what MUD games are and how they are played by a user.
https://medium.com/@williamson.f93/multi-user-dungeons-muds-what-arethey-and-how-to-play-af3ec0f29f4a
• Please note: you are expected to research, design and create your own
game, not just use Fred’s example


More information is provided in the screenshots attached