GRYPHLINE has officially rolled out the Delver of the Cryptic update for Arknights: Endfield, and as far as major online game additions go, this one comes packed with meaningful new content.
One of the standout areas in this update is the Industrial Labyrinth. Here, players are tasked with solving layered, critical puzzles that reward careful thinking. In return, you earn valuable loot in the form of chests.
Unlike standard overworld exploration, where chests are scattered across Talos-2 and often easy to spot, the ones inside the Industrial Labyrinth require more deliberate effort. That extra complexity has understandably caused some confusion among players.
To help you clear it smoothly, here is a full guide to navigating the mode from start to finish.
How to Find All Chests in the Industrial Labyrinth
The Industrial Labyrinth is the fourth stage, out of a total of seven, in the Cryptic First Revealed segment of the Delver of the Cryptic permanent mode. It is built to test your critical thinking through a series of environmental and logic-based puzzles.
Your main objectives here are straightforward on paper: find the correct path to the exit and secure all three bonus Crates along the way.
Step-by-Step Navigation and Puzzle Solutions
1. The Red Light Room: Begin your run by moving down the initial hallway until you reach a large chamber illuminated with red light. As you approach the door leading to a portal, it will automatically shut. Instead of trying to force that door, look to the right; a side door will open as you get close.

2. The 21323 Clue: Once through the side door, move toward the left side of this new area. On the wall or display, you will see the number 21323. Take note of this number as it will become essential for solving an upcoming puzzle.

3. The Chest Bait and Initial Loop: Continue from the clue room into a hallway where a chest (Crate) is visible at the end of a path. When you approach it, the door guarding the chest will close, and two doors on the sides of the hallway will open. To proceed, enter the room on the right that is closest to the path where the Crate was originally spotted. Navigate through this side room normally. You’ll notice that you’ve looped back to same hallway as before (the one where the chest door closed on you). This is not wrong, just keep going and you’ll eventually see the code 21323 again, reinforcing its importance. Walk down the same corridor again, but this time, after the door to the initial chest closes, a new pathway will open on the right side. Enter this path to find the first Crate immediately after solving this hallway navigation puzzle.


4. The UWST Logo Laser Room: The next section features a room with lasers that cycle on and off at set intervals. Carefully time your movements to cross the room. Look at the left wall for a UWST logo; the correct path is marked by a frame of the logo that is a different color than the others.

5. Memory Platform Challenge and Crate #2: The following challenge requires you to cross a series of platforms. These platforms only remain stable if you jump on them in a specific, memorized sequence. If you step on an incorrect platform, it will fall away, and you will be forced to restart the platform section from the beginning. Once you successfully reach the end of this puzzle, you will find the second Crate. If you don’t want to waste time here, the images below show the correct platforms to jump on.


6. The 2-1-3-2-3 Door Sequence: You will then arrive at a series of doorways numbered 1, 2, and 3. Using the code found earlier (2-1-3-2-3), you must enter the doors in that specific order. Before stepping through, look inside each room to ensure you are following the sequence correctly. Continue this process until you reach the fourth door, which specifically has a “2” above it. Bear in mind, the fonal door is numbered, but the lighting purposefully hides it within its brightness. To beat this part, pass through this already open door and move straight down the hallway. It is vital that you ignore any other doors that may open on the sides; entering these side doors will trigger traps that reset your progress to the very start of the door puzzle.

7. Finding Crate #3 and the Final Path: You will now reach a hallway where doors on both sides open, many containing portals that act as decoys. Walk down the hall to the second to last pair of doors.
- The Left Door: Enter the portal here to be teleported to a floor above the main path, where the third Crate is hidden. After collecting it, return to the hallway.
- The Right Door: This door leads you directly to the final challenge of the labyrinth.

8. Final Laser Maneuvers and Exit: The final room contains lasers that maneuver toward your position. You must time your jumps and movements precisely to avoid the beams and reach the Protocol Space exit to finish the level.

Stage Rewards and Completion Benefits
Successfully clearing the Industrial Labyrinth rewards you with a solid batch of development materials for your Arknights: Endfield operators and their weapons.
Simply reaching the exit grants 200 Oroberyl, 20,000 T-Creds, 2 Advanced Cognitive Carriers, and 6 Protohedron. On top of that, you will receive the Mark of Perseverance and one Arms INSP Set.
That covers the base completion rewards. If you also manage to open all three bonus Crates, the payout increases significantly. Doing so adds 9,000 T-Creds, 12 Elementary Cognitive Carriers, 3 Protohedron, and 21 Arms INSP Kits to your total haul.
And that wraps up the Industrial Labyrinth puzzle in Arknights: Endfield. If you enjoyed working through this stage and the broader Delver of the Cryptic update, there is still plenty more content on the horizon for the game.


