Changes

Although the system was primarily used for education, research and communication, a large assortment of games came to be developed for the system. Notable games include dnd which bears a striking resemblance to Rogue, written 6 years afterwards for UNIX systems, spasim which is eerily similar to David Braben's ELITE, written almost 10 years later, empire , a Star Trek strategy game, avatar, a (arguably the first) MUD, Moria (perhaps the first example of a first person dungeon crawler) and many more.