They Hunger is a single player horror based mod of Valve's first-person shooter Half-Life. It was released by Neil Manke's Black Widow Games in three episodes, the first in 1999, the second in 2000, and the final installment in 2001. All three were at one point bundled with PC Gamer magazine.
You're a writer who saw some success in the past but is now struggling to complete your latest work. Your publisher rents you a house in the country and you are on your way there to rest, write, and recoup. During the course of your drive the relaxing radio music is broken by a hurried annoucement, "This is BMRF radio bringing you a special news report! Unknown atmospheric phenomena have been reported throughout the area. Meteorologists have been unable to identify the source of the strange electrical displays but we will keep you informed of any developements. We return you now to our regular programming".