Thanks to its extremely low drop rate and strong forge multiplier, The Forge Arcane Crystal stands as one of the most valuable end-game resources in the game. This guide covers everything you need to know, including what Arcane Crystal is, where to find it, how to farm it efficiently, and whether you should use it for forging or sell it for gold.

What is The Forge Arcane Crystal?

The Forge Arcane Crystal is a mythical-tier crystal ore. It does not provide special abilities or passive effects, but it has a very high forging multiplier, making it ideal for crafting powerful weapons and gear. Here is what to know about it:

Where to find The Forge Arcane Crystal

The Forge Arcane Crystal can only be found in one location: Goblin Cave – Crystal Nodes.

You cannot find this crystal in normal mining areas. It only drops from crystal nodes inside the Goblin Cave.

Good to know: How to unlock the Goblin Cave

• Locate the Goblin King NPC.

Complete the The Forge quests, which require:

• Bring the Goblin King $5,000.
• Bring the Goblin King $10,000 and 3 Topaz.
• Bring the Goblin King $15,000 and 5 Diamonds.
• Bring the Goblin King $20,000 and 5 Emeralds.
• Bring the Goblin King $25,000 and 5 Rubies.
• Receive the Goblin Cave access after finishing the questline.

Once unlocked, you can enter the Goblin Cave freely and mine crystal rocks inside.

How to get The Forge Arcane Crystal

The Forge Arcane Crystal does not spawn directly in the world. Instead, it has a small chance to drop when you mine crystal rocks in the Goblin Cave.

These crystal rocks can drop many different crystal ores, such as:

• Blue Crystal
• Green Crystal
• Crimson Crystal
• Rainbow Crystal
• Arcane Crystal (very rare)

Every crystal rock you mine is a new chance, but the odds remain extremely low.

4 best ways to farm Arcane Crystal in The Forge

Because luck plays a major role, farming The Forge Arcane Crystal is about efficiency, not tricks.

1. Use the best pickaxe available

A strong The Forge pickaxe, like Arcane Pickaxe, is essential for efficient farming, which allows you to:

• Break crystal nodes faster
• Mine more crystal nodes per session

Even though higher pickaxe power does not directly increase the drop rate of The Forge Arcane Crystal, mining more nodes in less time significantly improves your real chances over long farming sessions.

2. Focus only on Crystal Nodes

Do not waste time mining normal rocks.

Stay inside the Goblin Cave and target only crystal rocks, as these are the only nodes that can drop The Forge Arcane Crystal. 

3. Use luck buffs (Especially Luck Totems)

Always activate luck buffs before starting long mining sessions. Luck buffs can include:

• Luck potions
• Luck runes
• Totems

The Luck Totem is one of the most important tools for farming The Forge Arcane Crystal. When placed on the ground, it increases your luck by about 25% for a short time. While the boost is temporary, it can significantly improve your odds during large mining runs.

Because Arcane Crystal is extremely rare, even small luck increases become meaningful when applied across hundreds or thousands of mined crystal nodes.

4. Be ready for long farming sessions

The Forge Arcane Crystal is not a quick grind. Due to its extremely low drop rate, you should expect:

• Several hours of focused mining
• Multiple farming sessions over time

Patience and consistency matter far more than short or casual attempts. 

How to use The Forge Arcane Crystal effectively

Once you finally obtain The Forge Arcane Crystal, you have two main choices.

Option 1: Use it for forging

This is the most powerful use of the crystal.

With a 7.5× forge multiplier, it greatly improves your chances of crafting:

• High-tier weapons
• Strong armor
• Rare item types

Important tip:

Do not waste it on low-level forging. Save it for:

• End-game weapons
• Large forging batches with other rare ores

Most experienced players store Arcane Crystals until they are ready for serious crafting.

Option 2: Sell it for gold

If you need money instead of gear, selling is also a choice.

• The Forge Arcane Crystal sells for a very high gold amount
• One crystal can fund:
  • Pickaxe upgrades
  • Quest requirements
  • Other rare materials

This option is popular with players who prefer progression through upgrades rather than crafting.