Certainty of Steel achievement
Last updated Unofficial fan guide
- Steam description
- Have 4 P.E.O limbs attached simultaneously
- Players who have it
- 1.1%
How to unlock Certainty of Steel
Have four P.E.O. prosthetic limbs attached at the same time.
It's number 37 of 40 by how many players have it (Steam global stats, November 15, 2026).
Sources: Casualties: Unknown Wiki (Miraheze) · Steam Community