Nuclear Winter is a survival mod in the snowy wilderness, where the player must survive the brutal winter cold. You are the lone survivor of a devastating nuclear attack. You must find shelter from the freezing wind and fight off the brutal winter. It has an unique setting that has never been seen before.

The gameplay of Nuclear Winter is very simple. The main goal of the game is to survive the winter. To do that, you will need to stay warm. You can use various to stay warm: food/beverages, alcohol, hand warmers, blanket, and water.