Overview
Mortuus is a round-based zombies FPS for 1–4 players: survive the round, spend your points, choose your upgrade, repeat — on a procedurally generated map that’s new every run. Steam lists over 30 guns, perks, Gun Ascension, an upgrade draft, five elements, gore and dismemberment, special enemies and boss fights. Official
Glossary
- Rounds
- Survive each round of zombies, spend your points, choose an upgrade and last as long as you can. The demo caps a run at round 25; the full game is reported to have no cap. OfficialPress
- Points
- The in-run currency spent on doors, debris, guns, perks, the Mystery Box and Gun Ascension. In co-op, each player has their own. OfficialPress
- Procedural map
- Every run builds a new brutalist map: rooms, corridors, courtyards and dead ends are rebuilt, in daylight or at night, clear weather or storm. Doors, perk machines, Mystery Box and exit move each time. Official
- Doors & debris
- Buy doors and clear debris to open the map. Doors one player buys open for the whole team. OfficialPress
- Power
- Find the power switch in the generator room behind the red-lit “Door to Power.” OfficialPlayers
- Wall weapons
- Take a gun off the wall. Players report a wall buy in every room. OfficialPlayers
- Mystery Box
- Hit the Mystery Box for a random gun. Its position changes every run. Official
- Perks
- Bought from perk machines scattered across the map. Players mention a Second Chance perk and a melee perk. OfficialOfficialPlayers
- Gun Ascension
- Feed your gun to the altar and choose how it gets stronger, as many times as you can afford. The room has a violet lamp over its door. OfficialPlayers
- Upgrade draft
- After every round, pick one upgrade from a draft, so each run builds differently. Official
- Elements
- Steam lists five elements as a key feature. Players mention lightning damage; the full list is not officially published. OfficialDev
- Dismemberment
- Limbs come off where you shoot. Shoot the legs and zombies crawl; big guns punch through bodies; corpses bleed out, burn or shatter depending on how they died. Official
- Special enemies
- Juggernaut, Lope and Skitter join later rounds, alongside boss fights. Official
- The Mother
- Woken by a hidden ritual. Players report a three-hearts offering at the Ascension altar opens her room. OfficialPlayers
- Levels, bank & loadout
- Out-of-run progression: XP levels, banked money and a loadout with a cost. Demo progress won’t carry over. OfficialPlayers
- Map editor
- Build custom maps and share them on the Steam Workshop. Official
By the numbers
| Stat | Value | Source |
|---|---|---|
| Players | 1–4 (solo or online co-op) | Official |
| Guns | Over 30 | Official |
| Elements | 5 | Official |
| Demo round cap | 25, plus a vote for one more | Press |
| Upgrade draft | 1 pick after every round | Official |
| Install size | 2 GB (full) · 1 GB (demo) | Official |
Sources
Labels: Official store page or pinned post · Dev developer statement · Players community report, not confirmed by the developer · Press coverage.
- Official Mortuus — Steam store page (app 3680170) — 2026-10-29
- Press MeinMMO — Steam Next Fest October 2026 top 10 (German) — 2026-10
- Press gaming-st.com — Mortuus demo guide: Japanese, co-op, PC specs (Japanese) — 2026-10
- Players Community thread: "Took 1 hour to find the first generator room" — 2026-10-24
- Official Pinned "Workshop Maps | Share Your Creations" — Steam discussions — 2026-10-21
- Players Community thread: "little bit of feedback after playing" (knife) — 2026-10
- Dev Developer (Hamuno) replies in "constant freezing and low fps" — 2026-10
- Players Community thread: "通關方式" (how to clear the demo) — 2026-10
- Official Pinned "Mortuus | Frequently Asked Questions" — Steam discussions — 2026-10-27
- Players Community thread: "Not a Fan of Banking Being Limited" — 2026-10
Spotted something outdated? Mortuus is still in development; values can change between demo patches and the full release. See how we source.