Sterilization Chamber Safe Solution Guide
Summary
One of the Safes found in the ARK Facility.
Opening every Safe in the game unlocks the "No Safe is Safe" Trophy.
Sterilization Chamber Safe Guide
[1] Progress the Main Story.
Keep playing until the game reaches the part where Grace arrives at the ARK.
[2] Find the Sterilization Chamber Safe File.
Upon reaching the lower floor of Bioweapon Repository 05, check the container right in front of the staircase that connects the Anteroom and the Repository.
A note found on top of the container provides the necessary code: Right 10, Left 90, and Right 20.
[3] Open the Sterilization Chamber Safe.
The Sterilization Chamber is found east of the Lab Entrance and Bioweapon Repository 2.
Look at the northeast corner to see the Safe on top of a counter.
