Core Keeper: Where to find tin ore to upgrade your arsenal

Core Keeper tin ore is an important step toward crafting weapons and tools stronger than copper, including your first ranged weapon, the slingshot, and more durable bronze armor. If you've started exploring the starting biome in Core Keeper, you've discovered plenty of copper deposits, and using a smelter, workbench, and anvil, you've been able to craft some decent weapons, armor, and tools. But if you're looking to upgrade your Core Keeper arsenal with tin, you're going to have to do some major tunneling into an entirely new biome to find it...
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