Well, there is unofficial squaresoft mud, and also I believe a mud based on resident evil.
however, if your interested in older games I would recommend Cleft of dimensions Website here 

This is a mud set in a world populated by nintendo and other characters and literally starts with the player being sucked into his/her nes, with the tutorial including punchout, marrio warp zones and zelda portals.

Races you can play include kirbies, Reploids, moogles and Hyrulians and there are some really interesting abilities and classes, and of course in the game itself references keep coming with goombas, mushroom blocks, metroids and so on.

My  only major problem with the game is quests seem near impossible to find and do. The game includes lots of quests but whenever I've been on I've ended up wandering around trying to work out where to find what, with the wiki not being too much help, though admittedly I probably need to spend more time.

The game also has very well done access, and I like the point system, indeed it needs a db page too.

Hi.
There are also some Starwars muds, but I don't know if they are based on the videogames, or just the Starwars universe.

Do cleft of dimension have a sound pack?

@Vazbol, I completely agree. I have had lots of fun with Aa over the years, but the experience really is quite misleading.
The number of people I've seen who won't play a mud because it doesn't have a soundpack, even when that mud is entirely accessible and then limit their choice so badly is rather sad, since much as I do like the sounds in something like Aa or cosmic rage, I've had a really good time in muds with straight text as well.