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The Atlus Tunnel is yet another cave system in Elden Ring that contains many Smithing Stones and Somber Smithing Stones for upgrading your equipment. With a cave full of Smithing Stones comes Crystal Miners, as well.

RELATED: Elden Ring: Atlus Plateau Complete Walkthrough

You can find the entrance to the Atlus Tunnel in the region of Atlus Plateau. You need to drop down from the broken bridge where the NPC, Finger Reader, and waygate portal are - this is near the Forest-Spanning Greatbridge Site of Grace. The cave is directly South of the great tree in the middle of this area.

Atlus Tunnel Overview

elden ring atlus tunnel crystal miner

Atlus Tunnel Overview

Bosses

Crystalian Duo

Enemies

Crystal Miner, Malformed Star, Scavenger

Notable Loot

Rune Arc, Somber Smithing Stone (5), Somberstone Miner's Bell Bearing (2), Arsenal Charm +1

Dungeon Walkthrough

elden ring atlus tunnel two ways

This tunnel system consists of various rooms. The first room to your right will have a Crystal Miner sitting on the floor. There is a chest with a Rune Arc inside and a Smithing Stone (5) on the wall.

Be wary, as a Scavenger will jump on you from behind when you enter.

elden ring atlus tunnel stone digger standing up

Continuing forward, there will be a miner sitting against the wall. In the room to your right, there will be sleeping snail enemies and Crystal Darts to loot.

elden ring atlus tunnel crystal cave

The next area in the tunnel looks more magical. It's filled to the brim with Cracked Crystals, Smithing Stones, and enemies. There are multiple Crystal Miners, but there are also various Scavengers waiting for you to make your first move.

You'll want to take this room out slowly. If you go deep into the room without a plan, you'll get bombarded by over six enemies at once.

There are some stairs that lead up to some Somber Smithing Stones, Scavengers, a Crystal Miner sorcerer and a dead end. To the right are an item and a mini-boss. Forward is the main boss for Atlus Tunnel.

elden ring atlus plateau purple hue pathway

Turning right, you'll meet a Malformed Star in the distance near another opening. Be careful because it will start attacking you. You can hide behind the roots and loot a Golden Rune to your right. You are able to jump down the roots and reach a lower platform that leads to some Glintstone Scrap, though it will be very hard with the Malformed Star throwing things at you.

There is no way to access the area the Malformed Star is at from the Atlus Tunnel. This dark chasm is actually shared by another cave system, the Perfumer's Grotto. That is the opening you see in the distance. It's best to head there and take the Malformed Star out from a closer range since you can't reach it from the Atlus Tunnel.

elden ring atlus tunnel path to boss

Backtracking and heading forward, you'll enter a larger room full of sleeping snails and Cracked Crystal. The boss room is just ahead, where you'll face a duo.

How To Defeat Crystalian (Spear) And Crystalian (Ringblade)

Elden Ring Crystalian Duo fight

Crystalian enemies are tough to go against. They soak up most damage other than brute physical strength. With two at once, it's even more of a challenge. This is why it's optimal to summon a suitable Spirit Ash for this fight. While you're focusing on one Crystalian, your summon can deal with the other. Use a Spirit Ash that's tankier or that can easily stagger the enemies.

Magic isn't impossible against these two. In fact, keeping distance and casting spells will be easier than getting close to a duo with melee. Rock Sling is a great spell that will break an enemy's stance easily.

The Ringblade Crystalian is more of a problem since she starts flying around and throwing things at you while the Spear Crystalian pokes with her stick most of the time. It's easier to take out the Spear Crystalian first, so you can deal with the chaotic Ringblade one-on-one.

Something that may not be understood about the Crystalian enemies is that they have a sort of crystal shield that will break once a certain amount of damage is done to them, or they become staggered. Once broken, they will take more damage from you. Patience is key.

Next: Elden Ring: Complete Guide And Walkthrough