Kingdom of Drakkar, also known as Drakkar or even Kingdom of Drakkar II, is a really odd duck among the annals of MMO history. While being very small potatoes for the industry as a whole throughout its entire lifespan, it is notable for an extraordinary long run (it began in the 1980s, people!) that's traversed through several format changes and handlers.
I've seen Drakkar described, somewhat unkindly, as a "shoddier Ultima Online," but I think that is a surface judgment that doesn't take the effort to get to know the game or its legacy. There must be something to this game if it's been around for three decades, yes? Let's find out!