probably square and konami.
as for world of warcraft not being a hardcore game...
umm.. compared to most hard core games world of warcraft qualifies as ultra hardcore
not in terms of difficulty but in terms of how long people play and how many people have bought the game
well over 15 million people have downloaded/bought the game
the average- CASUAL player, plays 20 hours a week..
and continues to play ~20hrs a week for well over a year







