Is Hellgate an MMO or not?

Being as Hellgate: London is seeing lots of installs this week, the question is going around: is it an MMO or not? As Cuppy points out, it certainly fits the bill. It is Massive, it is Multiplayer, and it is definitely Online. But on the other hand, Hellgate is a little different-- it's free to play, like Guild Wars, but also like Guild Wars, expansions will cost you. You can form guilds, but as I understand it, there is no "overworld," per se-- even towns are instanced.

So is it an MMO or not? Depends, of course, on how you define MMO. A persistent overworld is a huge element of "normal" MMOs-- a world in which you can walk around and see thousands of other players playing the game alongside you, and Hellgate doesn't have that. On the other hand, its unique model lends itself to pulling in a lot of non-MMO players. Players turned off by the time and money commitment implied by a monthly fee have no such problems with Hellgate, and that will definitely be a nice draw for them (as it has been with Guild Wars).

So maybe we need a new label for just what games like Hellgate are. Anyway Games says, wisely, that labels are how you sell games, and, for better or worse, Flagship can't call their game an MMO. So what can they call it? These "buy once, play in a virtual world" games will surely become more popular. Instead of simply being called MMOs, maybe we should put them in an "instanced multiplayer game" (IMG) market of their own.