Last updated: July 2026
Mortuga Submarine Map
Full Mortuga Submarine room guide for The Mermaid Mask: Parlor, Mess Hall, Illusion Theatre, Control Room, and all eleven locations with purposes.
The Mortuga Submarine is the primary setting for The Mermaid Mask murder investigation—a lovingly detailed vessel with eleven distinct gameplay rooms connected by pressurized corridors. This reference lists each room's narrative purpose, puzzle associations, and typical exploration order for players navigating submarine exploration without spoiling finale revelations. Captain Magnus Mortuga's eccentric design choices blend theatrical showmanship with functional submarine architecture, creating locked-room possibilities central to the Illusion Theatre crime scene.
Social and Performance Deck
Parlor: Crew social hub; houses card lens stereoscope and initial suspect introductions. Mess Hall: Galley plus dining; contains dial puzzle and lost-and-found pig leg segment. Illusion Theatre: Locked-room murder site with stage hydraulics, ancient cauldron prop, and reconstruction finale staging—access requires Control Room power and key retrieval.
Operations and Crew Quarters
Control Room: Navigation brain with switchboard puzzle and compass needle preview. Child's Room: Family history clues feeding Dream Chamber and pig puzzles. Bunk Rooms: Crew sleeping quarters; piggy bank mount and payroll locker. Dream Chamber: Surreal optional space unlocked via shape lock; audio logs for Mariana Moon.
Industrial and Command Sections
Cargo Hold: Crate stacking area with navigation spare parts and optional shape piece. Captain's Cabin: Mortuga personal effects; compass pinboard late-game. Engine Room: Wirman domain with square wafer tool item and ballast log cross-reference. Airlock Grotto: Exterior maintenance access with blue compass needle and grotto buoy tie-in for pinboard solution.
Use submarine map legend filters after clearing each room to track remaining magnifying hotspots—critical for fifty-clue completion. Power state from switchboard affects corridor lighting but not fast travel availability once rooms register cleared.
- Parlor — social hub, card lens puzzle, suspect scenes.
- Mess Hall — dial puzzle, galley storage, pig leg segment.
- Illusion Theatre — crime scene, locked-room reconstruction.
- Control Room — switchboard, logbook terminal, power gating.
- Child's Room — family clues, shape lock lamp, magnetic letters.
- Bunk Rooms — piggy bank puzzle, crew lockers.
- Dream Chamber — optional surreal logs, pig tail segment.
- Cargo Hold — spare parts, optional shape piece crate.
- Captain's Cabin — compass pinboard, Mortuga personal archive.
- Engine Room — ballast logs, square wafer, Wirman alibi props.
- Airlock Grotto — exterior maintenance, blue needle, grotto buoy.