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Arknights: Endfield

How to Use Protoprism

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Protoprism is a Progression Material for Arknights: Endfield. Check out how to farm Protoprism, its location, how to use it, and its information, here!

How to Get Protoprism

Reward From Completing Protocol Space: Skill Up

Protoprism is obtained as a reward for completing Protocol Space: Skill Up at Threat Levels 1 or higher. You will need to use your Sanity to enter the rift and get the rewards from it!

Reward From Completing Various Missions

Progressing the story mission, side quests, and other mission type may reward you with Protoprism upon their completion. Make sure to get and complete all the mission to get a chance to obtain Protoprism.

List of All Missions

Obtain Through Exploration

Arknights Endfield - Is Talos-II an Open World
You can find Protoprism as you explore areas in Talos-II and open chests containing them.

Endfield Interactive Map

How to Use Protoprism

Used to Upgrade Character Skills

Operator Skill Upgrade Materials
Endfield - Protoprism Protoprism Endfield - Protohedron Protohedron

Protoprism can be used to increase your Character's Skills alongside other materials!

List of All Characters

Protoprism Effects and Overview

Protoprism Information

Arknights Endfield - ProtoprismProtoprism Rarity 3★
Type Operator Material
Effect
A material that upgrades operator Skills.

A special disk set manufactured using Techno-Protocol and advanced data etching processes. Often combined with other devices to improve physiological absorption of enhancement materials.

Arknights: Endfield Related Guides

Arknights Endfield - Items

List of All Items

Items By Category

All Items By Category
Progression Materials Natural Resources Gatherables
AIC Products Usable Items Mission Items
Valuables Operator Gifts

All Progression Materials

Blighted Jadeleaf Tuber ItemBlighted Jadeleaf Tuber Triphasic Nanoflake ItemTriphasic Nanoflake D96 Steel Sample 4 ItemD96 Steel Sample 4
Cosmagaric ItemCosmagaric Quadrant Fitting Fluid ItemQuadrant Fitting Fluid Metadiastima Photoemission Tube ItemMetadiastima Photoemission Tube
Advanced Cognitive Carrier ItemAdvanced Cognitive Carrier Mark of Perseverance ItemMark of Perseverance Bloodcap Mycelia ItemBloodcap Mycelia
Igneosite Seed ItemIgneosite Seed Igneosite ItemIgneosite Tachyon Screening Lattice ItemTachyon Screening Lattice
Blighted Jadeleaf ItemBlighted Jadeleaf Bloodcap ItemBloodcap Auronyx Seed ItemAuronyx Seed
Kalkodendra Tuber ItemKalkodendra Tuber Red Bolete Mycelia ItemRed Bolete Mycelia Ruby Bolete ItemRuby Bolete
Elementary Cognitive Carrier ItemElementary Cognitive Carrier Heavy Cast Die ItemHeavy Cast Die Arms INSP Set ItemArms INSP Set
Kalkonyx Seed ItemKalkonyx Seed Red Bolete ItemRed Bolete Umbronyx Seed ItemUmbronyx Seed
Umbronyx ItemUmbronyx Auronyx ItemAuronyx Kalkodendra ItemKalkodendra
Pink Bolete ItemPink Bolete Chrysodendra ItemChrysodendra Vitrodendra ItemVitrodendra
Protohedron ItemProtohedron Kalkonyx ItemKalkonyx Pink Bolete Mycelia ItemPink Bolete Mycelia
Protoset ItemProtoset Cast Die ItemCast Die Protoprism ItemProtoprism
Arms INSP Kit ItemArms INSP Kit Protodisk ItemProtodisk Advanced Combat Record ItemAdvanced Combat Record
Arms Inspector ItemArms Inspector Intermediate Combat Record ItemIntermediate Combat Record Elementary Combat Record ItemElementary Combat Record

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