Moral Decay is one of the more realistic muds in existence today. I started playing myself more than 10 years ago, and although it was much harder back then, it keeps you interested because of the depth of each room and npc.

We don't simply fight a monster with such and such hp. The monsters have history and background. Sometimes you need to explore to find this background, sometimes you can talk to certain creatures to find out more about what they know. This leads you to very interesting quests with rewards from cash and xp to unique items.

I am now a wizard there, coding for the world that will always be part of my life because of the rl friends and good times i've had while logged in.