How do you unlock the recipe for a Fenris Coat?

To unlock the recipe for the Fenris Coat in Valheim, you must first explore the Mountain biome and locate Frost Caves. These caves are unique dungeons found in the Mountains, and they are the only place where you can obtain Fenris Hair, a key crafting material for the Fenris Coat. Frost Caves are identifiable by their icy entrances and are often guarded by hostile creatures like Ulvs and Cultists. Before venturing into the Mountains, ensure you have proper cold resistance gear, such as a Wolf Fur Cape or Frost Resistance Mead, to survive the freezing temperatures.\n\nOnce inside a Frost Cave, you will encounter Fenris Cultists, who drop Fenris Hair when defeated. Collecting Fenris Hair is essential, as you need 20 pieces to craft the Fenris Coat. Additionally, you will need Leather Scraps and Chains, which can be obtained from other biomes or enemies. Chains are often found in Sunken Crypts in the Swamp biome or dropped by Wraiths, while Leather Scraps are crafted from Deer Hides, which are abundant in the Meadows biome.\n\nAfter gathering the required materials, you must unlock the recipe for the Fenris Coat. This is done by interacting with a Forge, which is a crafting station built using 4 Stone, 4 Coal, 10 Wood, and 6 Copper. Once you have a Forge, place the Fenris Hair, Leather Scraps, and Chains in your inventory and approach the Forge. The recipe will automatically unlock, allowing you to craft the Fenris Coat. The coat provides both cold resistance and a significant boost to movement speed, making it an excellent choice for exploring cold biomes or engaging in combat.\n\nOne common challenge players face is locating Frost Caves, as they are not as abundant as other dungeons. To increase your chances of finding one, explore higher elevations in the Mountain biome and look for large, icy rock formations. If you are struggling to survive in the Mountains, consider crafting Frost Resistance Mead at a Fermenter using Honey, Thistle, Bloodbag, and Greydwarf Eye. This mead provides temporary cold resistance, giving you more time to search for Frost Caves.\n\nFor new players, it is important to note that the Mountain biome is a high-difficulty area, so preparation is key. Bring a strong weapon, such as an Iron Mace or Draugr Fang bow, and ensure your armor is upgraded. Experienced Vikings can optimize their exploration by using a Longship to travel along the coastlines of Mountain biomes, as Frost Caves are often located near the edges of these areas. Additionally, bringing a portal setup can save time and resources, allowing you to quickly return to your base if needed.\n\nIn summary, unlocking the Fenris Coat recipe requires exploring Frost Caves in the Mountain biome, defeating Fenris Cultists for Fenris Hair, and gathering Leather Scraps and Chains. Once you have the materials, use a Forge to unlock and craft the coat. This powerful piece of armor is invaluable for surviving cold environments and enhancing your mobility, making it a must-have for any Viking adventurer.