MUDs & Text Games
147 sites
https://improbableisland.com/
Improbable Island is a long-running old-school text adventure game that has been actively developed since the dial-up era, featuring a sprawling, surreal storyline involving quantum physics, robots, time travel, and lions in disguise. With a dedicated player community active 24/7 for over a decade, this irreverent and self-aware game prides itself on being gloriously weird and deliberately overwhelming.
http://moo.ca/
Moo Canada is a long-running Canadian online virtual world where users can chat, build objects, and write programs in a MOO environment. Celebrating over thirty-one years of operation, it claims to be the largest MOO in Canada and offers free accounts for anyone who wants to join its community.
http://mud.arctic.org/
ArcticMUD is a free online multi-player text-based RPG set in the Dragonlance universe of Krynn, running continuously since 1992. Players can explore a massive world, complete quests, engage in player-vs-player combat, and choose from a variety of character classes and alignments inspired by TSR's beloved fantasy novels.
https://virtualnet.at/txa/index.htm
Viktor Krammer's TxA Text Adventure System is a development environment for creating text adventures on MS-DOS, Windows, and Linux, complete with a two-level parser supporting synonyms and optional words. The site includes documentation, a quick-start guide, downloadable games, and a sample excerpt from an original text adventure called 'The Blue Stone'.
https://tecfa.unige.ch/moo/clients/cupomud/CupOmud_docs.html
Cup-O MUD is a Java-based client for Multi-User Virtual Environments (MUDs, MOOs, MU*s) written by Alex Stewart, designed to be embedded directly into web pages so users can connect to MUVEs without installing any software. The documentation covers features, applet integration, parameters, TELNET negotiation, and a history of MUVE systems, making it a thorough technical reference for 1990s online virtual world enthusiasts.
http://pr-if.org/doc/play-if-card
The People's Republic of Interactive Fiction offers a beginner's guide to interactive fiction distilled onto a single postcard, written by Andrew Plotkin and designed by Lea Albaugh for newcomers sitting down in front of an IF game for the very first time. Available in multiple formats including PDF, PNG, SVG, and HTML, plus translations in French, Russian, Spanish, German, and Italian, this handy reference card conveys the essential command patterns without overwhelming beginners.
https://mume.org/
MUME (Multi-Users in Middle-earth) is a free, text-based multiplayer RPG set in Tolkien's Middle-earth, continuously running and expanded by volunteers since 1991. Players choose from races like Hobbits, Elves, Orcs, and Trolls to explore iconic locations and take part in the epic conflict between the Free Peoples and the forces of Sauron.
https://lisdude.com/moo/macmoo-readme.html
Hosted on John C. Daub's personal site, this page preserves historical documentation about MacMOO Server, a Mac OS implementation of the MOO text-based virtual world platform from the mid-1990s. It includes detailed setup instructions and quirks from original authors Jens Alfke and Allan Crain, making it a valuable artifact for anyone interested in the early history of MUDs and MOOs.
http://forum.ifzentrale.de/
if-de is a German-language community forum dedicated to interactive fiction and text adventures, covering both German and English-language games with sections for discussion, tips, and reviews. The forum also hosts dedicated boards for authoring tools like Inform, TADS, and Floyd, making it a hub for German-speaking IF creators and players alike.
http://mystic-adventure.org/
Mystic Adventure is a free-to-play medieval fantasy MUD (multi-user dungeon) featuring over 20,000 rooms, unique classes and races, creative quests, and a welcoming player community. The site serves as the official hub for the game, offering guides on connecting via MUD clients, character creation, crafting, clans, and maps for new and veteran players alike.