This guide explains how to locate the Hidden Room in Deer & Boy, including the necessary lever sequences required to unlock the door and earn the associated achievement.
Quick guide to unlock the door to the Hidden Room and earn the following Trophies/Achievements:
Step 1: Reach Checkpoint 23
Head to the section covered in black matter containing a lever that has no power.
Step 2: Restore Power
Clear the black matter using the deer, then use the wooden box to access the vents. Head right until you reach a room with a power registry and a second lever.
Use the following lever combinations in this order:
- Restore power: Down → Up → Down → Down
- Door lock #1: Down → Down → Down → Up
- Door lock #2: Up → Down → Down → Up
- Door lock #3: Up → Down → Down → Up
Step 3: Trigger the Trophy
Approach the glass and let the people inside see you; the trophy/achievement will pop automatically.
By completing this sequence and being spotted by the characters behind the glass, you will successfully unlock the Hidden Room achievement in Deer & Boy.