Demon's Winter is a role-playing video game developed and published by Strategic Simulations in 1988. It is a sequel to SSI's 1986 Shard of Spring, set two hundred years after the events of the original, featuring a game world 32-times the size of the previous one.

The evil sorceress Siriadne has been slain, the Shard of Spring has been recovered, and peace and prosperity returned to the fantasy island of Ymros. Two centuries later, however, great numbers of aggressive monsters have suddenly appeared, devastating the region and its inhabitants. A party of five adventurers must band together in order to combat this threat, starting only with meager skills and supplies after a kobold attack on the now-ruined village of Ildryn. Ultimately, they must uncover the source of the beasts, as well as the unnatural cold that plagues the land, and ultimately put an end to both.