AddictMUD is a very stable Circle based game that has been around for 20 years. The owner, Brazil, is a brilliant coder and has created some very cool systems within the game. Multi-classing is one of the coolest new features that many of the older players coming back to the game will not recognize. For years Addict was a single class system, now you can multiclass several "guilds" and "subguilds" to create your perfect character.
There is also a remort system to add special benefits to your character, such as cast cost reduction and equipment slots. There are also two remort races, Elf and Dwarf which give you more mana or hitpoints respectively. With the number of different options and rewards, you can customize your character as much as you desire.
The MUD is huge with tons of areas from Dragaera, but also other fantasy and historical areas. Explore a revamped Ancient Rome, have a gun fight in Tombstone, Arizona or fight the Cat in the Hat from Dr. Seuss. Search the MUD for leprechauns and turn in their coins for loot. Start a clan or build a fortress of storage rooms to store all your gear.
Come check us out and one of our very newbie friendly players will help you get started!