Iron is the metal that comes after Bronze in Valheim. You collect Scrap Iron in Sunken Crypts after you have defeated The Elder. Sunken crypts are locked and you need the Swamp Key dropped by The Elder to enter them.
Once you have reached the Iron Age, you can craft a Longship.
|Can be Teleported||No|
|Used In (items)||Ancient Bark Spear,|
Iron Tower Shield,
Serpent Scale Shield,
|Used In (structures)||Blast Furnace,|
Standing Green-burning Iron Torch,
Standing Iron Torch,
Wood Iron Beam,
Wood Iron Pole
Iron Cooking Station
Iron items require more metal than any other items in the game, plus you’ll need iron for end-game items. In total, it takes over 1000 iron bars to craft every iron item in the game.
Since you will need tons of iron, we recommend scouting out many Swamps to find large clusters of Sunken Crypts. It’s totally reasonable to find 5 – 9 crypts in a single swamp (and then zero in 10 other swamps 😠).
Your mining trips to dense clusters of sunken crypts will be much more productive than scouting out new crypts only after the latest one has been emptied.