God of War Muspelheim guide: Getting to Muspelheim: Here’s how to get to Muspelheim in God of War, and complete the arena challenges to earn Smouldering Embers. After Kratos and Atreus return from Alfheim - home of the Light and Dark Elves - they discover a cypher that lets them travel to Muspelheim, the realm of fire. Early in the game, you learn that the realm of Midgard isn’t all that God of War has to offer.