The Commodore 64 Games System (often abbreviated C64GS) was the cartridge-based game console version of the popular Commodore 64 home computer. It was released by Commodore in 1990 as a competitor in the booming console market. It was only ever released in Europe and was a considerable commercial failure.
During its short shelf life, the C64GS came bundled with a cartridge with four games: Fiendish Freddy's Big Top O'Fun, International Soccer, Flimbo's Quest and Klax. (from Wikipedia)