Mutant Herd is an action game written by Jeremy Smith and Grahame Hampton-Matthews for the VIC-20 and published by Thorn EMI in 1983.

The mutants crawl towards you from multiple burrows located at each corner of the screen.

Using laser beams, you need to prevent the mutant herds from destroying your powerhouse.

You will have won the game when you have sealed all the burrows and successfully protected your powerhouse.

called it "a two-part arcade game with a unique twist", favorably reviewing the graphics, sound, animation, and gameplay.