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Methods to Farm Copper Keys
- Crafting One of the most reliable techniques to make a Copper Key would be through the Key Casting Table, which needs five copper bars. If you do not have a Key Casting Table, then you can make one at your Iron Workbench using 10 Planks and 8 Iron Bars.
- Fishing Another way to obtain Copper Keys is through fishing in the water bodies found in the Dirt Biome. While the chances of finding a Copper Key by fishing are rather low, it still is an item that can be fished out as a rare reward. Continue fishing in these waters to increase your chances of finding one that has a Copper Key inside.
- Looting Copper Keys can also be found in various chests and containers across the Core Keeper map. Search and open the following storage units for a chance to find these keys:
- Dirt Biome Chests
- Clay Caves Chests
- Forgotten Ruins Chest
- Larva Hive Chest
- Abandoned Camp Chest
- Hidden Clay Chest
- Hidden Turf Chest
- Small Islands Chest
- Clay Melody Mural #1 Copper Chest
- Clay Melody Mural #2 Larva Hive Chest
- Large Ancient Crates
- Wooden Crates
- Defeating Enemies Certain enemies in Core Keeper drop Copper Keys. To farm these keys effectively, target the following enemies:
- Orange Slime
- Red Slime
- Small Slime Vessel
You get Copper Bars by smelting Copper Ores in a Furnace, which you can craft at the Basic Workbench with 20 Dirt Walls. Use a good pickaxe like the Soul Seeker to break down walls efficiently to collect stuff.
To make this process easier, equip a strong endgame weapon like the Rune Song, especially if you’re at a later stage in the game.
Using Copper Keys
The main use of Copper Keys is to unlock the Locked Copper Chests. These chests can be found in Dirt Biome and Clay Caves. Sometimes, you may also fish them out in the waters of the Dirt Biome. Opening these, you will find:- Ammonite
- Ancient Coin
- Bomb
- Cave Pouch
- Copper Bar
- Copper Sledge Hammer
- Crude Bomb
- Ear Plate
- Fang NecklaceFibrer
- Flintlock Musket
- Hand Drill
- Heart Berry Necklace
- Larva Ring
- Mechanical Part
- Old Amulet
- Pet Pellet
- Pot Lid
- Pot Tub
- Rare Candy
- Ring of Stone
- Rusty Dagger
- Scrap Parts
- Swift Feather
- Tin Axe
- Tin Bar
- Triangle Trinket
- Twisted Agate
- Wood Crossbow
Frequently Asked Questions
How do I craft Copper Keys in Core Keeper?
Use 5 Copper Bars on a Key Casting Table to make Copper Keys. If you haven't made a table, then at the Iron Workbench you can also do so using 10 Planks and 8 Iron Bars. Copper Bars are smelted from Copper Ores in a Furnace.
Can I find Copper Keys through fishing?
Yes, Copper Keys have a chance to be fished out from water within the Dirt Biome. However, the chances of catching a Copper Key are very low, making this a more random method for obtaining keys.
Which enemies drop Copper Keys?
The Copper Keys drop from Orange Slime, Red Slime, and Small Slime Vessels. One can farm these enemies effectively with the help of powerful weapons such as Rune Song.
What can I find in Locked Copper Chests?
You'll find the following items inside a Locked Copper Chest: Bars of Copper, a Copper Sledge Hammer, a Heart Berry Necklace, Rare Candy, plus much more. These chests were usually located ithe n Dirt Biome area or Clay Caves.