Battletech: The Frontier Lands
- A realtime, online futuristic mechanized war simulation.
- http://www.btmux.com

OtherSpace: New Journeys
- Based on an original science fantasy theme by Wes Platt. High emphasis on the storylines and on creating a fun and positive roleplaying environment. Site contains game overview, message boards, player guides, and links.
- http://os.jointhesaga.com/

Star Fox MUSH - The Lylat Wars
- Features anthropomorphic characters (furries) in a science fiction setting.
- http://www.drigon.com/~sfoxmuck/

Shadowrun: Seattle MUSH
- Based on the Shadowrun system, Shadowrun: Seattle offers a sophisticated Matrix system for Deckers and an advanced Magic system.
- http://shadowrun.dnaco.net/

Heavy Gear MUX
- Heavy Gear RPG from Dream Pod 9 set in Khayr ad-Din, 'city of trash,' home to Rovers, renegades, mercenaries, Duelists and lowlives from all over Terra Nova.
- http://www.hgmux.org/

Gate Crashers MUX
- A SciFi game in which travel throughout the solar system is possible, and characters can be derived from sci-fi, fantasy, anime, comic books, and other sources.
- http://gc.iamyourgod.org/

Mega Man MUSH
- Based on the storylines of Capcom's Mega Man games.
- http://www.megamanmush.com/

ShyeMUSH
- Unique science fiction interactive story.
- http://www.shye.org

Dune III MUSH
- Based on Frank Herbert's Dune Chronicles. Features detailed information about factions, players, archives and resources.
- http://www.dune3.net

Battlestar MUSH
- A roleplaying MUSH based on the old Battlestar Galactica television series. Extensively coded systems, newbie friendly, and a well-established playerbase.
- http://www.withoutaclue.com/bsm2/