What’s the optimal way to farm Surtling Cores for crafting?

Farming Surtling Cores in Valheim is essential for crafting portals, smelters, and charcoal kilns, making them a critical resource for mid-to-late game progression. Surtling Cores are primarily found in Burial Chambers in the Black Forest biome and from Surtlings in the Ashlands biome. However, the most efficient way to farm them is by exploiting Surtling spawners in the Swamp biome.\n\nTo begin, you’ll need to locate a Fire Geyser in the Swamp biome. These geysers are marked by a constant flame and emit Surtlings, fiery enemies that drop Surtling Cores upon death. The key to farming Surtling Cores efficiently is to manipulate the environment around the Fire Geyser. By digging out the surrounding water, you can create a pit that automatically kills Surtlings as they spawn, allowing you to collect their drops without engaging in combat.\n\nStart by equipping a pickaxe and locating a Fire Geyser. Once found, dig a trench around the geyser, ensuring the water level is high enough to submerge the Surtlings. Surtlings take damage when in contact with water, so this setup will cause them to die instantly upon spawning. This method is highly efficient and requires minimal effort once the trench is dug. Be cautious of other enemies in the Swamp biome, such as Draugr and Leeches, as they can interrupt your farming process.\n\nFor players who prefer a more active approach, you can also farm Surtling Cores by exploring Burial Chambers in the Black Forest. These dungeons contain Surtling Cores in chests and as loot from destroyed piles of bones. While this method is less efficient than farming Fire Geysers, it’s a viable option for early-game players who haven’t yet ventured into the Swamp biome. Bring a weapon, shield, and plenty of healing items, as Burial Chambers are filled with Skeletons and other hazards.\n\nAnother late-game option is to farm Surtlings in the Ashlands biome, a dangerous area filled with fire-based enemies. Surtlings here spawn naturally and drop cores when killed. However, this biome is far more challenging than the Swamp, so only attempt this if you’re well-equipped with high-tier armor, weapons, and fire resistance mead.\n\nTo maximize your farming efficiency, consider building a portal near the Fire Geyser in the Swamp biome. This allows you to quickly return to your base to deposit cores and repair tools. Additionally, bring a cart or extra inventory space to store the cores, as they can quickly fill your inventory. If you’re farming in Burial Chambers, mark their locations on your map to revisit them later.\n\nIn summary, the optimal way to farm Surtling Cores is by exploiting Fire Geysers in the Swamp biome. Digging a water-filled trench around the geyser ensures automatic kills and a steady supply of cores. For early-game players, Burial Chambers in the Black Forest are a viable alternative, while late-game Vikings can venture into the Ashlands for additional farming opportunities. Always prepare adequately for the biome you’re exploring, and consider building portals for convenience.