Ken Levine took to Twitter to announce that Bioshock Infinite will no longer have a multiplayer component of any sort. A fan asked “Can you clear up whether or not Bioshock Infinite will have multplayer modes?” to which Levine replied “Nope.” When pushed further for clarification on the matter “Does that mean nope it won’t or nope you can’t clear that issue up?” Levine answered with a definitive “No multi.”
So far it is unknown why they decided against multiplayer, but that may be why the game keeps seeing release date changes. Bioshock Infinite is currently set to release early next year on the PC, Playstation 3 and Xbox 360.