In this Blue Prince guide, we’re going to show you how to solve the VAC Indicators Puzzle in the Utility Closet or the Breaker Room. If you haven’t heard of this title before, Blue Prince is a new puzzle game developed by Dogubomb and published by Raw Fury. Moreover, Solving the Utility Closet puzzle unlocks the Gemstone Cavern, allowing you to start each run with 2 gems.
Blue Prince: How To Solve The VAC Indicator Puzzle in The Utility Closet

If you want to solve the VAC Indicator Puzzle in the Blue Prince yourself, you should pick up the note in the mail room and check the Access Terminal for an email. These clues help you figure out the solution for the Utility Closet Puzzle. But I guess you’re here for the solution.
VAC Indicator Puzzle Solution

The VAC Indicator Puzzle in Blue Prince has four major steps that must be followed in the given order. If you can’t understand the steps, solve the VAC Indicator Puzzle using the images.
Step 1: Turn All The Green Buttons Purple
- Open the Breaker Box in the Utility Closet and turn all the buttons green.
- Press the button in the first position until it’s red.
- Travel in the order from left to right or right to left to turn the rest of buttons purple.
- To do this, press the blue button in the next position to turn the red button purple. Continue either left to right or right to left until all the buttons turn purple.
- Once five buttons turn purple, click the last button to turn it purple on its own.
Step 2:Turn the 4th Button White
- When all 6 buttons turn purple, press the 4th button to turn it white. Now, don’t interact with the 4th white button.
Step 3: Interact With The Buttons on the Right
- Press the 6th button to turn it red.
- Press the 5th button to turn it blue, then red. The 6th button will turn purple.
Step 4: Interact With The Buttons on the Left
- Press the 1st button and turn if off. The 2nd button will turn blue.
- Press button 3 and turn it green.
Conclusion
If you’ve done everything correctly, a hidden door will open. Interact with the switch to unlock the Gemstone Cavern. The Gemstone Cavern will be now available in your campsite and from the next day onward, you’ll start with 2 gems.