Akashat MUX
   Akashat MUX is an adult BDSM-oriented roleplaying environment set in a fantastic floating city. Themes of slavery and domination.
   http://www.akashat.com

Le Jardin Mystique MUCK
   Adults Only BDSM MUCK for online experimentation and socialization with like minded people.
   http://www.lejardin.org

Sanctuary MUSH
   Sanctuary is an adult MUSH devoted to those who love BDSM and those who wish to learn more.
   http://sanctuary.wolfpaw.net

Sociolotron
   Adult MMORPG, in a post-apocalyptic setting. Includes magic, science, and cybersex. This game is in beta-testing.
   http://www.sociolotron.com/