GameSpy writes: "Penumbra: Black Plague is an adventure game that's all about atmosphere. Playing in the afternoon with the TV buzzing in the background doesn't cut it. It's the kind of game that should be played at night -- with the lights out and preferably after everyone else has gone to bed.
Black Plague continues the story of Penumbra: Overture. You play the role of Philip, who in the first game trekked to Greenland after receiving a strange letter from his thought-to-be-dead father. There, he discovered a lost mine which was converted into a secret base/laboratory; unfortunately, it was also infested with terribly angry monsters. Numerous journal and video entries hinted at a greater evil which was soon to emerge."
-Various ways to solve certain puzzles
-Physics-based object manipulation works great
-Some obtuse puzzles
-Poor use of save checkpoints