| Achievement | How to unlock
|
|---|
| "There's Something in Here" | Clear Episode Four in Invisible Mode.
|
| "You are Authorized to Panic" | Clear Episode Four in Countdown Mode.
|
| I'm Not Leaving Without My Medal | Get all medals in Episode Four.
|
| True or False | Clear Episode Four.
|
| What You Can't See Can Kill You | Defeat six or more Glasps in the monument in Claire's Episode Four, on Normal difficulty or higher.
|
