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Unofficial wiki · Demo build · verified 2026-10-29

Mortuus Wiki & Survival Guides

Mortuus is a round-based co-op zombies FPS by Hamuno for 1–4 players. The rules feel familiar; the map never is. This wiki tracks what is confirmed — and labels what players have only reported.

Full release
Jan 11, 202775 days
Demo
Livesince Oct 14, 2026
Players
1–4online co-op
Planned price
$14.99per Steam FAQ
Quick answer

What is Mortuus?

Mortuus is a round-based zombies FPS for 1–4 players (solo or online co-op) from developer Hamuno. Each run builds a new procedurally generated brutalist map, in day or night, clear weather or storm. You buy doors, find the power switch, take guns off the wall or from the Mystery Box, buy perks, upgrade guns at the Gun Ascension altar and draft one upgrade after every round. Steam lists over 30 guns, five elements, special enemies and boss fights, plus a hidden ritual that wakes the Mother. Full release: January 11, 2027 on Steam for Windows, macOS and Linux; a free demo is out now.

Field note

Read the lights, not the map

The map changes every run, but the lamps don’t. Players in the official Steam discussions point to two constants:

Start here

Guides

All guides →
How a run works

The round loop

Open the wiki →
  1. 01Survive

    Clear the round and earn points to spend.

  2. 02Open

    Buy doors, clear debris, find the red-lit power door.

  3. 03Arm

    Wall buys in every room, or gamble on the Mystery Box.

  4. 04Perk

    Buy perks from machines scattered across the map.

  5. 05Ascend

    Feed your gun to the altar behind the violet lamp.

  6. 06Draft

    After each round, pick 1 of 3 upgrades.

Hidden branch: hearts → altar → the Mother. In the demo, a run ends at round 25 or at the first boss.

Reference

Wiki

Dated log

Latest

  1. Release date revealed: January 11, 2027Dev
  2. Demo optimization patch: shader warm-up fix, hidden contentDev
  3. Free demo released on Steam with online co-opOfficial

Demo reviews on Steam: 93% positive of 833 (checked 2026-10-29).

Official

Get the game

We never host game files. Download only from Steam. Community and support: official Discord.

Asked a lot

Mortuus FAQ

Full FAQ →
What is Mortuus?

Mortuus is a round-based co-op zombies FPS for 1–4 players by solo studio Hamuno. Every run generates a new brutalist map, so doors, perk machines, the Mystery Box and the power room move each time.

When does Mortuus come out?

January 11, 2027 on Steam (Windows, macOS, Linux), per the developer’s Steam announcement of October 26, 2026.

How much will Mortuus cost?

The planned price is $14.99, with a possible $19.99 Supporter Pack and a launch discount, according to the pinned Steam FAQ. There are no pre-orders.

Is there a free Mortuus demo?

Yes. The free demo launched October 14, 2026, includes online co-op and a map editor, and caps a run at round 25. It stays up until about 1–2 weeks before launch.

Is Mortuus on Xbox or PS5?

No console version has been announced. Steam lists Windows, macOS and Linux with full controller support, and players report the demo runs well on Steam Deck.

How do you do the Mortuus Easter egg?

Players report collecting three hearts from zombies in certain rooms and offering them at the Gun Ascension altar to open the Mother’s boss room. The developer has not published official steps. See the Easter egg guide.

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