Cthulhu The Cosmic Abyss — Chapter 2: Excavations
Suit up, underwater PIT station, vault links, labyrinth rift — end of current demo.
Clues & collectibles
- Lichen stimulant
- Tablet Electronic Component
- Hydrogen cylinders
- Control module recording
- Copper mountings
- Astral Stone
- Ancient Glyph tablet
- Red rope body
- Camp photo
- Monolith evolution
Step-by-step
- 1. Briefing and suit
Suit up after the study briefing. Use the capsule lever when instructed to proceed toward the vault.
- 2. Vault and reports
In the vault intro, link evidence to the PIT Incident Report from Chapter 1 when KEY prompts you.
- 3. Underwater PIT station
Drain the airlock to enter the station. Explore the engine room: lichen as a stimulant clue, tablet on Electronic Component frequency, and hydrogen cylinders for the generator puzzle.
- 4. Generator and corruption
Repair the generator. Corruption effects intensify after this segment — manage sanity and avoid lingering on twisted visuals.
- 5. Control module and copper
Recover the control module recording. Scan copper frequency from wall mountings for another vault link.
- 6. Labyrinth rift
Through the rift: obtain the Astral Stone and the glowing Ancient Glyph tablet. Investigate the body bound with red rope.
- 7. Camp and artifact
At the camp, review the photo and the monolith (evolution point). Place the artifact as directed to close the demo arc.
Sanity tips
Chapter 2 adds longer underwater tension. Take breaks from scanning if corruption audio spikes. Stack vault deductions early for Elementary-style achievements.
More in Sanity guide and achievements.