Ken Levine, Co-Founder of Irrational Games - who have two development studios; an Aussie one in Canberra and an American studio in Boston - has recently recorded a pod-cast for next-gen.biz, in which he talks all about the upcoming title, Bioshock. The ‘shooter’ title for the Xbox 360 and PC is set to hit the shelves in June this year. Among other things, Levine discloses some information about the lack of a multiplayer component on release:
It' really about core competency. This is our first game without multiplayer but if you look at our previous games, hardly anyone played them online, with the possible exception of SWAT. Apart from the really big multiplayer hits, you have some games with, like, six people playing them online. That's a lot of effort for a small return.
Check out the podcast found at the related link for more.