Beings of ancient evil, known as Old Ones, are threatening to break out of their cosmic prison and awake into the world. Everything you know and love could be destroyed by chaos and madness. Can you and your fellow investigators manage to find and seal every portal in time? Hurry before you lose yourself to insanity! It's classic Pandemic gameplay with a horrific twist in Reign of Cthulhu! This is a standalone game and does not require Pandemic to play.