Chuck Rock is a 1991 slapstick side-scrolling platform video game developed and published by Core Design for the Atari ST and Amiga computers.

The setting of the game is a fictional prehistorical Stone Age-era world that is shared by both neanderthals, woolly mammoth, saber-tooth tigers, dinosaurs, and various assorted wild primeval monsters such as prehistoric mammals, giant insects, human-eating plants, and other exotica; thus, the setting is similar to that of films such as One Million Years B.C., or television shows such as The Flintstones or Dinosaurs.

Chuck has a limited vocabulary (his favourite phrase being "Unga Bunga" and not much else), has a balding head cut into a punk-style mohawk, eats whole dinosaur-steaks raw in one bite, and has a penchant for picking up rocks and throwing them at things, hence his name.

Chuck must go to her rescue, searching for her in primeval jungles, swamps, lakes, an ice-capped mountain top, caves, and even the insides of a gigantic dinosaur.

Chuck Rock is a side-scrolling action-adventure puzzle platformer where the player, as the eponymous caveman, rescues his love interest, Ophelia, who is held hostage in a jungle by Gary Gritter.

[6] The game has five worlds (Jungle, Cave, Water, Ice and Graveyard) each with three to five levels and a concluding boss battle, and provides the player three lives and one continue.

[4] Some animals aid in Chuck's journey, such as flying lizards that he eats, a brontosaurus that he rides, and a crocodile that serves as a seesaw for him to bounce over a wall.

[10] Writers of EGM praised its successful combination of humorous elements and "heavy gameplay", Steve arguing Kato and Ken (1990) was the only other game he played that had it.

[3][4] The Genesis port was well-received by critics of EGM for its transition of the graphics from one console to another, Mean Machines its faster performance, larger screen and smooth frame rate.

[4] James of Total!, reviewing the Game Boy version, was critical of the collision detection and slow movement of the player character, and found the environments dull.

Nonetheless around the time of the game's release, Core commissioned a comic strip in the long-running UK children's magazine LookIn, centering on the day-to-day lives of Chuck, Ophelia and Junior.