The Day of the Beast (1998) is an expanded, globe-spanning campaign for Call of Cthulhu that pits investigators against the , a cult attempting to usher in a dark new age by summoning a cosmic horror. Originally published in 1984 as The Fungi from Yuggoth , this revised edition includes several new introductory scenarios and updated material. Campaign Structure & Plot

, a millennia-old cult attempting to summon a dread god known as "The Beast".

The original version, focusing on a world-spanning conspiracy. Curse of Cthulhu (1990):