What is Delver of the Cryptic in Arknights Endfield?

Delver of the Cryptic is a permanent puzzle-based challenge mode in Arknights Endfield. It features multiple Protocol Spaces with puzzle-focused challenges including Industrial Labyrinth, External Detonation, and Long Ear Invitation. Complete these challenges to earn Oroberyls, Credits, and upgrade materials.

Delver of the Cryptic Puzzle Guide Hub

Complete Walkthroughs for All Protocol Space Puzzles

Last updated: 2026-02-25

What Is Delver of the Cryptic?

Delver of the Cryptic is a permanent puzzle-based challenge mode introduced in Arknights Endfield. It features multiple Protocol Spaces that test your problem-solving skills rather than combat prowess.

Each Protocol Space offers unique puzzle mechanics - from navigating mazes with coded door sequences to using grenades creatively and herding mystical rabbits. Complete these challenges to earn valuable rewards including Oroberyls, Credits, and upgrade materials.

Key Features

• Permanent content - complete at your own pace
• Puzzle-focused challenges with minimal combat
• First-clear rewards include Oroberyls and materials
• Unlocks early in the main story progression
• Map notifications guide you to new Protocol Spaces

Cryptic First Revealed Puzzles

The original puzzle challenges featuring unique mechanics like coded door sequences, grenade throwing, and rabbit herding.

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Industrial Labyrinth Guide

Complete walkthrough for the Industrial Labyrinth puzzle. Learn the code 21323 door sequence (2-1-3-2-3), navigate the laser room, and find the final exit.

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External Detonation Guide

Complete guide to the External Detonation grenade puzzle. Learn how to lob grenades through gaps between bars to trigger switches and access rewards.

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Long Ear Invitation Guide

Find all 6 long ear rabbits and chase them into mounds. Complete walkthrough with video guide for this herding puzzle.

Grotto Survey Puzzles

Exploration-based challenges focused on finding chests scattered throughout various environments. Follow the video walkthroughs to locate all rewards.

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Irrigate Thy Path Guide

Find all 3 chests: zipline chest, rock platform with blight, and blight room chest. Complete exploration walkthrough with video.

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Wheels and Bridges Guide

Find all 3 chests in this exploration challenge. Complete video walkthrough showing exact paths and chest locations.

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Fording the River Guide

Find all 3 chests in this river-crossing exploration challenge. Complete video walkthrough showing exact paths and chest locations.

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Homecoming Guide

Find all 3 chests in this exploration challenge. Complete video walkthrough showing exact paths and chest locations.

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Tiny Buggy's Trip Guide

Navigate the route and collect all chests at the end. Complete video walkthrough showing the path to the final chest collection point.

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A Thirsty Array Guide

Array spraying puzzle with laser numbering sequence. Spray 3 arrays on matching locations and follow laser numbers to unlock path.

Rewards

Completing Delver of the Cryptic Protocol Spaces provides valuable first-clear rewards:

Oroberyls

Premium gacha currency for recruiting operators

Credits

In-game currency for upgrades and purchases

Materials

Circuit Boards, Crystallized Materials, and more

Frequently Asked Questions

What is Delver of the Cryptic?

Delver of the Cryptic is a permanent puzzle-based challenge mode in Arknights Endfield. It features two groups of Protocol Spaces: Cryptic First Revealed (Industrial Labyrinth, External Detonation, Long Ear Invitation) with unique puzzle mechanics, and Grotto Survey (Irrigate Thy Path, Wheels and Bridges, Fording the River, Homecoming, Tiny Buggy's Trip, A Thirsty Array) focused on exploration and chest collection. Complete these challenges to earn Oroberyls, Credits, and upgrade materials.

How do I unlock Delver of the Cryptic?

Delver of the Cryptic becomes available fairly early in the main story. Protocol Space challenges unlock as you progress, and new locations appear on your map with notifications under Map → Mission Reminder → Key Mission.

What rewards do I get?

Completing Delver of the Cryptic Protocol Spaces rewards you with Oroberyls (premium gacha currency), Credits, and upgrade materials including Circuit Boards, Crystallized Materials, and Compact Scripts. First-clear rewards vary by challenge.