The Eternal Frost mod adds in a new dimension that is the opposite of the Nether. It is very cold and you most keep yourself warm with a blue fire to prevent frostbite. The underground area is massive and is riddled with dungeons to explore and bosses to kill. These dungeons generate by breaking special blocks you find while mining. A unique feature of the dungeons is that they increase in size as you progress through them. When you make it to the surface of the world there are many biomes to explore and villages to find. Intro by:.