The Blackbridge Grotto is another location that you need to unlock in Blue Prince. Among other things you need to access this area to find and complete the Microchip Puzzle.
In this guide, you will find the solution to unlocking Blackbride Grotto and finding the hints that leads to the solution.
All Blackbridge Grotto Hints
Hint 1: The Boiler Room and Laboratory are linked to opening Blackbridge Grotto.
Hint 2: The Table of Elements contains a secret message which reveals your next steps.
Hint 3: The Laboratory requires Boiler Room power to follow the hidden message.
Hint 4: Begin by drafting and powering the Boiler Room because this will help you draft the Laboratory and Boiler Room together. The probability of drafting from a powered room increases when you draft from a powered door of the Boiler Room thus simplifying the process of room placement.
After obtaining a Laboratory with power and decoding the message you can follow the instructions to access Blackbridge Grotto.
How to Unlock Blackbridge Grotto
Start by drafting the Boiler Room and turning on the Boiler. After that, direct the power toward a specific area and try drafting in that direction. If the Laboratory doesn’t show up, just change the power direction and try again.
Once you get into the powered Laboratory, head to the small room with all the switches. Flip switch #9 first, then #3. That’ll activate the mechanism and permanently unlock the doorway to Blackbridge Grotto.
