Popular games built on game engine FluffOS

Discworld MUD is an online, text based multiplayer game, set in Terry Pratchett's Discworld.

Star Wars MUD, or SWmud, is a telnet text-based game set in the Star Wars universe, mostly during A New Hope to the Thrawn (Legends) campaign. Player killing is optional. Great space combat and newbie help! Star Wars mud is a heavily modified LPmud based on the Star Wars Universe. SWmud is not a role-playing MUD, though role-playing is not forbidden as long as it is within the rules.