The Games: Winter Challenge is a sports game based on winter events at the Olympics developed by Mindspan and published by Accolade in 1991 for DOS and Genesis. There is a sequel called Summer Challenge as well.
Winter Games is a sports simulation created by Epyx originally for the Commodore 64. It was published in 1985, as a sequel to Summer Games, the highly successful title based on the 1984's Olympic games.
The Activision Decathlon, or simply Decathlon, is a sports simulation created by David Crane initially for the Atari 2600 and published in 1983. It was then ported to MSX, Colecovision, Atari 5200 and Commodore 64.