How do you unlock the forge level 19 upgrade?

Unlocking the forge level 19 upgrade in Valheim is a significant milestone for players looking to craft the most powerful gear and weapons. The forge is a critical crafting station used to refine metals, craft advanced tools, and upgrade equipment. To reach forge level 19, you must unlock and build all available forge upgrades, which require specific materials and progression through the game''s biomes.\n\nTo begin, you must first build a basic forge. This requires 4 stone, 4 coal, 10 wood, and 6 copper. Once the forge is constructed, you can start upgrading it by adding various forge upgrades. These upgrades include the forge cooler, forge bellows, forge tool rack, and more. Each upgrade increases the forge''s level, allowing you to craft higher-tier items and improve your gear further.\n\nTo reach forge level 19, you need to unlock and build all forge upgrades. These upgrades are scattered across different biomes and require materials like iron, fine wood, chains, and obsidian. For example, the forge bellows require 5 fine wood and 4 deer hide, which can be obtained in the Meadows and Black Forest biomes. The forge cooler requires 25 fine wood and 10 copper, while the forge tool rack requires 15 iron and 10 fine wood.\n\nOne of the most challenging upgrades to obtain is the forge anvils, which require 20 iron and 5 wood. Iron is found in the Swamp biome, inside sunken crypts. You''ll need a swamp key, obtained by defeating the second boss, The Elder, to access these crypts. Once inside, use a pickaxe to mine muddy scrap piles, which yield scrap iron. Smelt the scrap iron in a smelter to obtain iron bars, which are used for crafting the anvils.\n\nAnother critical upgrade is the forge grindstone, which requires 25 wood and 1 sharpening stone. Sharpening stones are crafted at the workbench using 5 stone and 1 wood. The forge grindstone is essential for upgrading weapons and tools, so prioritize crafting it early. Additionally, the forge adze requires 10 fine wood and 3 bronze, which is crafted by combining copper and tin at the forge.\n\nTo maximize your forge''s level, ensure you have all upgrades placed near the forge. These include the forge cooler, bellows, tool rack, anvils, grindstone, and adze. Each upgrade must be within range of the forge to count toward its level. If you''re struggling to find materials, explore biomes thoroughly and defeat enemies like trolls and draugr, as they often drop valuable resources.\n\nA common challenge players face is locating iron in the Swamp biome. To make this easier, bring a portal with you to set up near the crypts. This allows you to transport iron back to your base quickly. Additionally, use a cart to carry large amounts of iron, as it can be heavy and slow to transport manually. Always bring poison resistance mead when exploring the Swamp, as the biome is filled with dangerous enemies and environmental hazards.\n\nIn summary, unlocking forge level 19 requires gathering materials from multiple biomes, defeating bosses, and crafting all available forge upgrades. Focus on exploring the Swamp biome for iron, the Black Forest for copper and tin, and the Meadows for fine wood and deer hide. By systematically gathering resources and building each upgrade, you''ll reach forge level 19 and unlock the ability to craft the best gear in Valheim.\n\nPractical tips for success include setting up portals near resource-rich areas, using carts for heavy materials, and always preparing with the right gear and consumables. With patience and persistence, you''ll master the forge and become a formidable Viking in Valheim.