UPDATE 10/02/2015 6.21am: Looks like BioShock 2 will be returning to various digital marketplaces soon, publisher 2K has confirmed.
The PC version of BioShock 2 has been updated on Steam now that the Games for Windows Live service has closed.
BioShock 2 on Steam now includes controller compatibility, Steam achievements and supports Big Picture mode. As for multiplayer, you can search for "any game" as opposed to having to select your game mode. DE has also fine-tuned the multiplayer so leveling up is quicker and easier.
If you've already bought BioShock 2 through a different digital platform, you can activate the game activation key within Steam, so you don't need to buy it all over again. Doing this grants you access to BioShock 2, all the multiplayer and Protector Trials DLC and the single-player DLC Minerva's Den.
The first two BioShock games and their DLC will be bundled together on Xbox 360 and PS3 as part of the BioShock: Ultimate Rapture Edition, due in North America on 14th January for $29.99
The British Board of Film Classification has outed BioShock Ultimate Rapture Edition for release in the UK.
The long-awaited Protector Trials DLC for BioShock 2 on PC has been yanked off the Games for Windows - Live Marketplace because "it's not ready yet".
BioShock 2 developer 2K Games has gone back on its decision not to release the Protector Trials and Minerva's Den DLC packs for PC, and is currently working to bring all content to the platform.
PC BioShock 2 users will not get to play the recent Minerva's Den DLC expansion, or the Protector Trials pack, 2K Marin has announced.