This MUD lib is becoming nice. Rooms are now working in a very simple way, but with most of the looks known from The Flat Earth.
The Player is really sparse, with so far no commands. However the first version of the command output generator is finished. It allows something like stream to be used (<< notation) with special classes for the player (you), the verb, and object lists. The system generates messages for everybody in the room, with appropriate substitutions.