This game has had my eye for awhile now and I'm just curious if its any fun. I know there's 3 that are the same game, not including an actual expansion that was made. The classes look fun and I've seen some of the gameplay on youtube and it looks good but the thing that seems to be the fact that its a 20 cap(yeah yeah I know its free but that seems to bothers me lol..). If I was to buy one of the ones which one should I buy? Nightfall? Long as this game has a lot of endgame type content I'll be busy on this