Mortal Shell II Hub

Mortal Shell 2 Point of No Return

Quick answer: defeating the final boss does not immediately end your run. The irreversible action is choosing Send Ova at the Gloom Siphon in Marrow Keep. Community walkthroughs report that this selection starts the ending and New Game Plus without a second confirmation screen.
Mortal Shell II late-game area

How Send Ova becomes available

  1. Build the endgame currency total to 168 Ovum through Corrupted Gates, Beacons, and other activities.
  2. Return to the Gloom Siphon room in Marrow Keep and use the newly opened route below it.
  3. Defeat the three Unfound Path guardians and then Zmey, the Unbidden.
  4. Return to the Gloom Siphon. The Send Ova option is now the final commitment.

If the option is missing, recheck the Ovum requirement and confirm that Zmey has been defeated.

What is not the point of no return?

Entering a Corrupted Gate, defeating a gate boss, collecting enough Ova to open the Unfound Path, and defeating Zmey do not by themselves close free roam. You can return to Marrow Keep after the final fight and continue cleanup as long as you do not select Send Ova.

Important: treat the menu option itself as the ending button. Make a manual backup if your platform supports it and you want an extra safeguard.

Before Send Ova checklist

The two tutorial achievements cannot be recovered by simply continuing into NG+ because the new cycle skips that opening sequence. Peter's Perfect Parry can be attempted again in a later cycle.

What happens after Send Ova?

The ending plays and the next cycle begins. Character progression, collected equipment, upgrades, currencies, revealed map coverage, and most inventory progress carry over; story state, bosses, quests, Corrupted Gates, most Beacons, custom map markers, and the Ovum total reset.

See the full NG+ carry-over table
Evidence: official game identity and core features are confirmed by Steam. Endgame route details are a community-verified synthesis cross-checked against current achievement names and published player guidance. Verified August 23, 2026; route details may change with patches.