The year is 2589. A miracle serum promised eternal life — and humanity drank it willingly. Four years later, the cure became the curse. Cities have fallen. The streets are overrun with the undead. Civilization is gone. You are among the last survivors, racing against time to figure out where everything went wrong. The infected are closing in, and the barricades won’t hold forever. Solve the puzzles. Secure your escape. Survive long enough to find the answer — or become one of them.