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Pro Game Guides
Pro Game Guides
Nikola Savic

How to Use the Unknown Key In the Forge

Not sure how to use the Unknown Key in The Forge? The Forge is one of the most popular recent Roblox experiences to take the platform by storm, and for good reason. The game boasts high production value, great visuals, engaging gameplay, and many secrets to unravel. One of those mysteries is the Bard's key. Read our guide to learn where to use it and what it unlocks.

The Forge Unknown Key - Where To Use It?

The Unknown Key unlocks a secret room in The Cave, the first mining location in Stonewake's Cross, the game's first island. This secret room is called Fallen Angel's Cave. In fact, you might have already stumbled upon the entrance to this room (a massive iron gate); you just didn't know that's the room you will need to unlock with this exact key. Here's how to find it.

The Forge Fallen Angel's Cave Location

  • On the first island (Stonewake's Cross), enter the Cave.
  • Once the railway line ends (where the NPC quest givers are), turn right.
  • You’ll need to defeat a few low-level zombies along the way.
  • From there, the path splits into several directions - take the middle one.
  • You’ll spot a massive portcullis (an iron grid gate) locked with a padlock.
  • Use the Unknown Key to unlock the gate.
  • Enter the room.
  • Congrats, you've found the Fallen Angel's Cave!

What's Inside the Fallen Angel's Cave?

Unfortunately, there are no free rewards inside. Instead, you’ll find the Arcane Pickaxe, one of the most powerful (and most expensive) pickaxes in the game. The only objectively better ones are the Demonic Pickaxe and the Magma Pickaxe. However, you won’t get it for free. You’ll need to pay a hefty sum for it.

The Forge Arcane Pickaxe Stats

Tier 2
Mine Power 115
Mine Speed +10%
Luck Boost +50%
Rune Slot 3
Price 110,000 Gold

As you can see, this is a high-tier, end-game pickaxe, so don’t stress if you can’t get it right away. It’s designed to be used after you’ve grinded your way through levels, quests, and new zones, including unlocking the Goblin Cave.

The Forge Arcane Pickaxe Stats
Image by Pro Game Guides

Some players might get confused by the fact that you can unlock this cave very early in the game, but don’t worry, the time will come when you’ll be able to use the Arcane Pickaxe. With that said, that's all you need to know about the Unknown Key in The Forge. And while you're here, don't forget to check out our ultimate The Forge Weapon Tier List.

The Forge Unknown Key FAQ

How to get the Unknown Key?

The Unknown Key is obtained as a free reward from completing the Bard's Guitar quest.

Can I use the Unknown Key for anything else?

No, it specifically unlocks only the locked iron gate in the Cave.

Are there any free rewards in Fallen Angel's Cave?

Unfortunately, no. Only the Arcane Pickaxe is inside.

Should I save to buy the Arcane Pickaxe?

Since you’ll probably find it early in the game, you shouldn’t buy it right away. There are better ways to invest your gold early on, including purchasing lower-tier pickaxes.

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