Essence Etching guide in Arknights: Endfield. Learn what Essence is, how to get it, how to etch Essences, best etching goals, and the benefits in AKEF.
Table of Contents
Essence Etching Goals
Aim for Perfect Gold Essences

The ultimate goal is to obtain a Gold Essence that fully enhances the effects of your chosen weapon. Gold Essences can be improved later via Etching, so prioritize securing a good base item.
Purple Essences Cannot Be Etched

Essences come in different rarities, but only Gold ones can undergo Etching. While a perfect Purple Essence works well temporarily, your final goal should always be a Gold Essence.
Compromise with Two Matches

The drop rate for a perfect item is extremely low. For support characters who don't rely as heavily on stats, settling for an Essence with two matching stats is a viable option.
Use High-Stat Placeholders

Until you find a Flawless Essence with three matches, equip one with two matches or high initial stats. Without Etching, these are comparable to ideal items, making them sufficient temporary placeholders.
Essences Enhance Weapons Only
Essences enhance weapons, not characters. You must refine Essences to match the weapon your character is wielding, not the character's own stats. Be careful not to confuse the two.
How to Get Essence
- Go to Energy Alluvium
- Unlock and Check Contents
- Defeat All Enemies

Each Energy Alluvium drops Essences with specific stats. To get an Essence with three matching stats, you must farm the correct location. Check the Operation Manual beforehand to verify the location and available stats.

Weapon stats consist of "Attribute Stats," "Secondary Stats," and "Skill Stats," which are visible on the weapon Gear screen. If the Essence effect name matches the weapon skill, the skill level will increase.

Unlike Protocol Space, Energy Alluviums are physical locations on the map. You must travel to the location to challenge them. Interact with the rift to view the Sanity cost and reward list.

Engraving Permits allow you to narrow down Essence skills, making farming much more efficient. They can be purchased with Valley Stock Bills, so be sure to stock up before you start refining.

When using an Engraving Permit, you must select three Attribute Stats to proceed. Ensure you haven't missed any. The specific Secondary Stats and Skill Stats you choose will be guaranteed.

Once the challenge begins, simply defeat all spawning enemies. You will consume Sanity only when you claim the rewards.

Placing Combat Facilities in the Alluvium's combat area makes defeating enemies easier and speeds up farming.
What Is Essence Etching
Enhance Essence Skills

Etching allows you to increase the stat level of a gold Essence. This process requires other gold Essences as material and has a chance to fail.
Guaranteed Success with Coolant Gel

When an enhancement fails, you receive Coolant Gel. By using this item, you can guarantee an Essence stat level up. This pity system ensures you can eventually reach the maximum level.
What Is Essence and Benefits
Boost Weapon Stats

Essences are items that raise weapon stat levels. Even a single level increase can significantly boost the damage multiplier, making the right Essence a powerful upgrade.
Matching Stats Required

If the Essence stat does not match the weapon skill, the level will not increase. Randomly equipping Essences without checking compatibility will provide no benefit.
Essence Stats Are Random

Essence skills are randomized when acquired. Using an Engraving Permit significantly improves your odds of getting desired stats, so make sure to prepare them before farming.
