Beginner Guide
A first-run plan from round 1 to round 25, with a checklist.
Read → Guide · 02Easter Egg Guide (Hearts & the Mother)
The hearts route players report, how to prepare, what is still unknown.
Read → Guide · 03How to Turn On the Power
Find the red-lit Door to Power and the generator room fast.
Read → Guide · 04Co-op & Multiplayer
Hosting, joining, what is shared and what is not, split-screen status.
Read → Guide · 05Map Editor & Workshop
Build custom maps, publish to the Workshop, community challenge maps.
Read → Guide · 06Performance & Fixes
Stutter, freezing, mouse polling rate, antivirus flags, Linux and Deck.
Read →How these guides are written
Mortuus is pre-release and its maps are generated fresh every run, so there are no fixed routes to memorize. Our guides teach signals and systems that stay constant, cite where each fact comes from and say plainly when something is unknown. Advice that is our own reasoning, not a sourced fact, carries no source label.
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
- Official Mortuus Demo — Steam store page (app 5363350) — 2026-10-29
Spotted something outdated? Mortuus is still in development; values can change between demo patches and the full release. See how we source.