Black Plague, the second installment of the Penumbra trilogy, starts shortly after the first left off, with Philip, the player character, waking up in a cell in a secret research station hidden under the mines. I’m immediately struck by a number of surface similarities to Half-Life: ruined-laboratory look, mutated zombie-like monsters, booby-traps made of explosives wired to laser tripwires across hallways. It’s a pretty big contrast to Penumbra: Overture in style, but the gameplay hasn’t changed much — if anything, it’s this episode plays less like Half-Life than its predecessor, as I haven’t found anything that can be used as a weapon, except perhaps some bricks I could throw. Presumably the creators got complaints about the awkwardness of melee in Overture and decided to just eliminate it.
This means that stealth is even more paramount, especially since some of those zombies have flashlights. They’re pretty smart for zombies, really, capable of speaking in coherent sentences and everything. “Zombie” is probably the wrong word. Call them “infected” if you like, because documents in the game are pretty clear that we’re dealing with an alien virus here. One that takes over your mind, or, at first, just produces a second mind, which the infected hear as a voice in their head. Red, the madman in the previous episode, wasn’t just insane from isolation, he was infected and knew it. And now Philip is too. There’s a point where you find documents describing the early symptoms of the virus, such as auditory hallucinations and déjà vu, and realize that you’ve already experienced most of them. Shortly afterward, you get a full-fledged voice in your head telling you what to do, taking over Red’s previous role as disembodied sidekick, but more antagonistic.
The interesting thing here is that it seems like the virus-personality might not be necessarily evil. It might, in your case at least, be more of a symbiosis than a disease. It’s certainly capable of being helpful, and there’s been mention made of the virus helping its host to survive (or, as in Red’s case, forcing its host to survive). To a large extent, Philip’s new brain-buddy is as new to this whole situation as Philip is; its whole personality seems to be formed from reading his memories, which means that its notion of what it is and what it should be doing is informed by its host’s expectations. The whole phenomenon is linked somehow to pre-Columbian Inuit superstitions and practices that were abandoned as demonic with the conversion to Christianity (as described in a document in the previous game — this story is starting to pull together elements that didn’t seem connected before). When the infection takes hold, you have a series of nightmarish interactive visions/hallucinations/ordeals involving elements of ritual sacrifice and elements of events in the previous game (with Red’s death qualifying as both). Until you reach the end and come back to the real world, the game basically stops feeling like Half-Life and instead feels like Silent Hill. This whole bit seems like a kind of initiatory passage through the Abyss, and I can easily imagine ancient shamans, who hadn’t yet been told that the spirits are evil, deliberately becoming infected/possessed to share their wisdom.
But then again, zombies. If the infection is supposed to be benevolent, something has clearly gone wrong. If I understand right, the virus has basically killed the original personality in these cases, and, in the process, left itself stunted. But perhaps it did this in self-defense.