Last updated: July 2026
World Map Overview
Interactive map overview for The Mermaid Mask covering Silkwirm-on-Sea surface locations and the full Mortuga Submarine deck plan with travel tips.
The Mermaid Mask splits investigation between coastal Silkwirm-on-Sea and the submerged Mortuga Submarine—a dual-layer map structure familiar to Detective Grimoire veterans but expanded with fast-travel nodes and contextual hint markers. After the prologue, the world map UI accessible from the journal tab displays surface districts and the submarine schematic as interconnected zones. Roughly fifty collectible clues distribute across both layers, rewarding players who revisit locations after solving puzzles like switchboard wiring or completing crew interviews that unlock private quarters.
Silkwirm-on-Sea Surface Map
Surface exploration centers on Stonetop Inn, Town Square, the harbor pier, and cliffside lighthouse path. Early game gating keeps you near the inn until Captain Seafoam authorizes submarine boarding; mid-game opens antique shops and town hall archives with optional evidence for Mariana Moon and Godrik Gripp. Surface map icons pulse when new dialogue topics appear after submarine discoveries—check back after major puzzle completions.
Mortuga Submarine Deck Plan
The Mortuga Submarine map tracks eleven interior rooms: Parlor, Mess Hall, Illusion Theatre, Control Room, Child's Room, Bunk Rooms, Dream Chamber, Cargo Hold, Captain's Cabin, Engine Room, and Airlock Grotto. Corridors illuminate progressively as power puzzles resolve; unresolved hotspots appear as magnifying glass silhouettes. Submarine fast travel requires clearing each room's initial inspection pass, preventing sequence breaks while avoiding tedious walking simulators.
Map hint integration—detailed in hint system guide—differentiates environmental hotspots from suspicion objectives. Toggle legend filters in controls menu to hide completed zones during achievement cleanup runs. Console players on PS5 and Switch benefit from minimap rotation lock options added at launch per SFB Games patch notes.
- Open world map from journal tab after prologue cauldron deduction.
- Surface layer: inn, town square, pier, lighthouse—optional mid-game shops.
- Submarine layer: eleven rooms with corridor power gating via Control Room.
- Hotspot icons update after interviews, puzzles, and 3D clue discoveries.
- Use map hints when magnifying icons persist after apparent full search.