Mortuus Easter Egg Walkthrough: Solving the Hidden Demo Ritual Sequence

Completing the hidden ritual Easter egg in the Mortuus demo triggers an early victory condition before reaching round 25. By answering a mysterious telephone, hunting an escaped entity, and feeding soul mouths, players conclude the demo ritual to awaken the suspended mechanical entity.

Restoring Power and Answering the Telephone

Once Power is active — following the steps in how to turn on power — explore the procedural facility corridors until locating a ringing wall telephone. Interacting with the receiver causes an eerie hand to reach outward before dropping a scurrying spider entity that dashes away.

Hunting the Escaped Spider Entity

Pursue the fleeing spider creature through the corridors. While early player theories suggested the Fire Extinguisher was necessary to melee the target, the entity can be eliminated with standard gunfire or Knife strikes. Corner the creature and shoot it before moving on to the next objective, relying on active perks for speed and survival.

Shooting the Glowing Hands and Feeding Soul Mouths

Shoot the glowing spectral hands along the corridor walls and eliminate the emerging spider entity. This action activates three demonic soul mouths positioned throughout the map. Stand within proximity of each mouth and eliminate zombies, channeling their essence into the receptacles until all three are completely satisfied.

Visiting Gun Ascension and Concluding the Ritual

Once all three mouths are fed, head to the Gun Ascension chamber in the Reactor Vault to prepare with essential weapon upgrades, defeat the round 10 brute, and complete the round to trigger victory. At round 10, armored brute adversaries known as big boys spawn into the match. Kite these heavy enemies into open areas and shoot them from behind, where their vulnerable backs sustain drastically increased damage, completing the round to trigger victory and conclude what community players refer to as waking the Mother.

The table below lists elemental damage affinities from the game's files.

Elemental Affinity	Category
Fire	Elemental Affinity
Ice	Elemental Affinity
Lightning	Elemental Affinity
Mechanical	Elemental Affinity
Resonance	Elemental Affinity
Singularity	Elemental Affinity
Water	Elemental Affinity
Wind	Elemental Affinity