The Protector Trials and Minerva's Den DLC packs were supposed to be single player extensions of the game developed by 2K Marin. Both were released for the Xbox 360 and PS3 versions of the game and both were originally announced as coming to the PC as well. We have emailed 2K Games to get more info on why these two DLC packs have now been scrapped for the PC version. In addition, it appears that there won't be any playlists added for the multiplayer DLC maps and that sounds for the game's vending machines won't be added for any versions of BioShock 2.
Gallery: BioShock 2 Screenshots