Crimson Desert Arboria Castle Strongbox Puzzle: Complete Guide

This puzzle looks simple, but the cylinder alignment can be easy to miss if you rush through the castle.

This Crimson Desert guide explains how to solve the Arboria Castle strongbox puzzle, its location, and a few things to watch out for so you do not end up adjusting cylinders blindly.

Where to Find the Arboria Castle Strongbox in Crimson Desert

Image via Pearl Abyss and YouTube/@DanAllenGaming

You will find the strongbox in the castle basement near the central area of Arboria Castle, inside a room covered in spider webs. Look for a mechanical box with five vertical pins, this is the puzzle you are looking for. If you are exploring during faction quests, you will likely pass through this area naturally.

Technically you do not need any quest to open it. However, some players have noticed that the mechanism may not respond properly until you complete the “Restarting the Elixir Factory” quest.

How to Solve the Arboria Castle strongbox puzzle in Crimson Desert

Image via Pearl Abyss and YouTube/@DanAllenGaming

The puzzle revolves around adjusting five rotating boards (cylinders) that control the height of metal pins. Each pin needs to line up exactly with the wooden panel line on the box. The silver tops should blend in with the painted background, while the golden sections sit just under the panel line. If one looks slightly off, that’s usually where the issue is.

Here is the exact solution you want to follow:

1. Start with the first cylinder (far left) and rotate it downward 3 times
2. Move to the second and rotate it 4 times downward
3. The third one needs 5 downward turns
4. Rotate the fourth cylinder downward 4 times
5. Finally, turn the fifth cylinder (far right) downward 2 times
6. After that, press the button on the right and turn the knob to open the box.

If everything is lined up properly, the box should open right away. If it doesn’t, one of the pins is probably just a little off.

Tip: The direction can be confusing at first. Turning downward actually pushes the pin up, and turning upward lowers it. The smaller pins usually need a few extra turns to reach the right height, which is why the middle one takes the most adjustment. If something doesn’t look quite right, try nudging one cylinder instead of resetting the whole thing. There is also a faint click when a turn registers, which helps when you are counting rotations.

Common Mistakes to Avoid While Solving the Puzzle

• Forgetting the last step: the box will stay locked if you do not press the button and turn the knob
• Turning a cylinder too many times: this is the most common reason it does not open
• Relying on guesswork: the panel line is your best reference, so use it
• Skipping a quick check: it helps to pause for a second and look at all five pins together
• Restarting immediately: in most cases, a small adjustment fixes it faster

Image via Pearl Abyss and YouTube/@DanAllenGaming

Once you open it, you will get an Equipment Manual, which comes in handy later for crafting better gear. Since no one is around in the castle, you can just take it without worrying about anything.

Overall, the Arboria Castle strongbox puzzle is short but satisfying once you understand how the pins behave. Stick to the rotation order and take a second to check them. Even if you get it wrong at the first time, you will mostly solve it in under a minute on your next try.

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