A free, actively developed fantasy text adventure, hand-built around the town of Lucidity since 1994. Explore in your browser with no download, or connect with your favourite telnet client.
- Free to play
- Zero-install web client
- 9 classes
- 160+ skills, spells & arts
A living world, built by hand
Explore Lucidity
Walk through a hand-built town and the lands beyond, with prose, commands and imagination doing the heavy lifting — supported by a modern browser interface.
Choose a path
Build a character from 9 classes, then pursue 36 high-mortal multiclass combinations and more than 160 skills, spells and arts.
Join an active world
Insomnia is actively developed on modern FluffOS: original systems restored, new areas and features added, and its famously unhinged soul database kept alive.
Born at a UK university in 1994

Insomnia MUD began in 1994 at a UK university, during the early years of shared online fantasy worlds.
Two renegade players known as Vx and Mork met on Elephant MUD, downloaded an early version of MudOS and a release of the Nightmare Mudlib — a starting point for building a game — and made Insomnia their own online world.
What began as a joke grew into a regular player community, with London mudmeets in the late 1990s and plenty of stories that still survive in the game.
Insomnia is alive again on a modern FluffOS driver, retaining the character and code of the original world while development continues.
Lucidity is still built by hand. New rooms, systems and browser features sit alongside restored 1990s code and the original social soul database.
Play instantly in a modern browser, or connect the traditional way at insomnia-mud.com 4000. New and returning players are welcome.


The people behind the prompt
The archive stays: real photos from Insomnia’s heyday, when aliases became friends, arguments became lore, and someone probably typed something regrettable into global chat.
Open the full old-school gallery →
Ready to wake up?
Open the free browser client with no download, make a character, and step into an actively developed MUD with a very old soul and a very new coat of paint. Traditional MUD clients can connect to insomnia-mud.com 4000.
To contact us, either email us at admin@insomnia-mud.com or simply logon to the MUD and shout for either Mork or Vx.
