For completionists, Post Trauma offers a range of achievements and trophies that challenge your skills and encourage thorough exploration. Here's a list of some notable ones and how to unlock them:

- The Archivist: Collect all 10 Hidden Journal Entries. (Refer to 'Side Quests & Activities' for locations).
- Pacifist: Complete the game without killing any non-boss enemies. This requires extreme stealth and evasion.
- Speedrunner: Complete the game in under 3 hours. Requires intimate knowledge of puzzles and enemy layouts.
- Resourceful Survivor: Complete the game using only 3 or fewer healing items. Demands near-perfect damage avoidance.
- Master of Shadows: Complete the game without being detected by more than 5 enemies (excluding scripted events). Focus heavily on stealth.
- The Truth Revealed: Unlock the secret ending by finding all 'Whispering Dolls'.
- First Blood: Defeat your first enemy. (Unlocks naturally during gameplay).
- Escape Artist: Complete the game on any difficulty.
Many achievements require multiple playthroughs or a very specific playstyle. Plan your runs accordingly if you aim for 100% completion.