ine reation - Originally, to build the world of a MUD you had to edit the game's data file off-line and by hand. However, most MUDs around now implement an OLC system so that builders can build the build on-line and in real time. This was, obviously, a huge help to buildersand MUDs in general. Aeon's OLC system has been modified to try and meet our builder's requests and thus make their job as easy and efficient as possible. We have no doubt that many more modifiactions will follow.