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The Quivering (also known as Spud II) is a single-player horror/comedy themed video game, developed by Charybdis and released by Alternative Software on CD-ROM for MS-DOS and Microsoft Windows. The game is a sequel to Charybdis' earlier 1996 game Spud!.
During a chemistry experiment, Uncle Olivetti accidentally opens a portal to Dimension X, which unleashes a horde of monsters led by the evil Big D, who transforms Olivetti into a raven. Olivetti's nephew, Spud steps forth to defeat Big D, restore his uncle and save the world from the incoming horror.
The player moves around in a 3D area with a 360 degree rotation.