Nevergrim is the tenth level in Dungeon Keeper. Nevergrim is a memorable piece of underworld topography. Open lava and spacious, snowy landmasses dominate the region, and the only solid walls in the entire level are those surrounding the two Dungeon Hearts. The openness seems to clarify matters for the usually-benighted Blue Keeper, for this opponent is likely to connect to your territory and launch an invasion as soon as he can.