On the other hand they have World of Warcraft at 115 Million subscribers. The chart could be active players who play the game or active people who actually pay a subscription fee. On the other hand, I don't see that being active subscribers. In that case, I would find that number to be low. I'm guessing that the 344,965 means the total number of people who have ever subscribed to the game. That information is a bit confusing since they also have a graph showing that only 16,000 are active players. I found this number surprising since I thought the most players Ultima Online had was about 245,000 after Trammel was introduced.
