BlackMUD is one of the longest running Multi-User Domains (text-based gaming) on the Internet, since 1993.
Lovers of Pathfinder and D&D will feel right at home in this heavily customizable fantasy setting.
Atharia is a custom world using FS3 on PennMUSH. It is a Lords and Ladies game that has a variety of things.
Anthropomorphic Pokemon in a freeform-RP AU setting heavily inspired by the base games.
One Man's Magic is Another Man's Technology
Legends of the Jedi is a Roleplay-Enforced, PVP, open-world storytelling game set in the Star Wars Universe.