Initial installation requires one-time internet connection; Ability to save game, earn achievements, receive title updates and online play requires log-in to Games for Windows LIVE; software installations required including Microsoft Visual C++2008 Runtime Libraries, Games for Windows LIVE client, Games for Windows LIVE Client Patch, Sony DADC SecuROM, Microsoft DirectX.

Steam buyers will have to be logged in to Valve's service, wait for BioShock 2 to unlock, undergo SecuRom activation (and install limits too, most likely), then log in to Games For Windows Live once the game has loaded, and then use it exclusively for multiplayer. With all multiplayer GFWL setups being less than great to date, I have to say that my pessimism for BioShock 2's multiplayer mode has just gone up a notch.
Why even bother making a PC version if they hate PC so much?

2K’s robolady Elizabeth:

Over the past two days, I’ve fielded a lot of questions and concerns about the DRM for both the retail and digital versions of BioShock 2. Because of this feedback, we are scaling back BioShock 2’s DRM.

There will be no SecuROM install limits for either the retail or digital editions of BioShock 2, and SecuROM will be used only to verify the game’s executable and check the date. Beyond that, we are only using standard Games for Windows Live non-SSA guidelines, which, per Microsoft, comes with 15 activations (after that, you can reset them with a call to Microsoft.)

What does that mean for your gameplay experience? This means that BioShock 2’s new DRM is now similar to many popular games you advised had better DRM through both digital and retail channels. Many of you have used Batman: Arkham Asylum as an example to me, which uses the exact same Games for Windows Live guidelines as us as well as SecuROM on retail discs, and now our SecuROM is less restrictive on Steam.

I know that the variables of PC gaming can be frustrating and confusing, and when you say there is a problem, we listen, and use your suggestions to make things better. Feedback like this does not go unheard, and while this might not be the ideal protection for everyone, we will continue to listen and work with you in the future when formulating our DRM plans.