Unfortunately it has been confirmed that BioShock’s multiplayer will have no LAN or dedicated server support on either console or PC. This news comes from a Q&A on 2K’s website cultofrapture.
From the site:
“There is always a finite amount of time for the development of a game. Bringing Multiplayer to BioShock was a daunting task between the tech (there was no multiplayer support in the codebase from the first game) and the expectations of the community. Either you try to do everything and so nothing feels finished or you focus your efforts to do a smaller number of things really well like an accessible online experience,” explained 2K Marin. “We chose to spend the time we had creating a solid game foundation and unfortunately that did not include LAN play or dedicated servers.”