Mortal Shell 2 Missables & Point of No Return
Last verified: 2026-08-24
Quick answer
The irreversible step is Send Ova at the Marrow Keep Gloom Siphon after Zmey — not the Zmey kill itself. Confirmed missables: the Tar Golem achievement on that playthrough, and Berserker’s Stone if you take the Heart of Vatra and leave (launch-build bug warning, dated 2026-08-24).
Confirmed lockouts
- No, You Still Can’t Win — reduce Tar Golem to 0 HP. Once per normal playthrough. NG+ does not replay that fight.
- Berserker’s Stone — PowerPyx currently warns it can become permanently unavailable after Heart of Vatra, including NG+. Recheck after patches.
- Send Ova — ends the current world’s free roam and starts the ending / NG+ flow.
Top of the stairs at the back; pick up the Heart of Vatra from the statue's hands. Article also warns to take the nearby Tarstone chest first or the area locks.

Quick answers
I killed Zmey. Am I locked?
Not yet. You are locked when you Send Ova.