The lights are on
Frictional Games released the "Justine" DLC for Amnesia as part of the Potato Sack promotion, but it's now available for free for all owners of the game. All you need to do is download the 1.2 update, and you can start scaring the crap out of yourselves all over again.
Speaking about the DLC, Frictional stated:
Together we created a massive Alternate Reality Game
which spanned 13 Steam games, as well as plenty of internet forums and
publications, and the real world. Frictional Games' main contribution to
this game was a DLC called Justine and truth be told, it plays pretty *** well even without the other stuff.
What are you waiting for? Grab your headphones and turn off the lights.
Source: Frictional Games via Joystiq