The entrance room came with his original entrance. We don’t know if the next entrance will just be a portal or if it will be like his original entrance. That being a room with a portal. I never made the assertion that Ricther has unlimited rooms in the dungeon. Although he does have several free rooms. Ricther converted settlement points to dungeon points. Then he used those in his entrance room/chamber to build his “stargate” type of portal along with the four Sided Barbican. At this point Ricther should have enough DP’s set aside for directed use that they could build some things. We will definitely find out more about the earned dungeon entrances later. I am personally hopeful they all come with an entrance room and perhaps a well of offering. The well might be a reach.