The Sinking City 2 Puzzle Solutions

Every puzzle in The Sinking City 2, chapter by chapter

Codes and sequences in this game are fixed — they do not change from save to save, so a number that worked for one player works for you. What does change is where the clue lives, which is why each page also tells you which document or object the answer comes from.

Chapter 1: A New Day

The opening chapter teaches you how to solve every kind of puzzle the game will use later: shape matching, a numeric code read off the world, and a symbol sequence taken from a document.

• Fuse box — the first gate. Three fuses, three slots, shapes must match. Nothing hidden, but easy to overlook a fuse lying elsewhere in the room.
• Star Key and the church door — the key is on a corpse outside, near the gate lever. It opens both the upstairs door holding the trident and a small outbuilding with an ERC crate in it.
• Trident and obelisk — the puzzle most people search for. Four symbols, one order, three lightning strikes, then the trident goes back where you found it.
• Watergate — a four-digit code, 1672, taken from a date written on the bell.

Chapter 2: The Wake-Up Call

The Printing House and the Devil's Reef Hotel are where the game starts stacking puzzles on top of each other: a key gates a token, tokens gate chests, chests gate a lock.

• Wireless room numbers — 13, 05 and 36, dialled in that order.
• Ventilation device — the one puzzle with a genuinely fiddly input: press counts, then a lever, then one more press.
• Lorelei lock — three tokens, three chests, three keys, and one of the chests spawns cursed objects you have to destroy.

Chapters 3 to 5

The back half of The Sinking City 2 leans on light, anatomy and machinery.

• Prism stations in Akeley Hospital — colour alignment, blue, yellow and pink.
• Face mask puzzle — five pieces gathered across the hospital, placed as one face.
• Locker padlock — lighthouse, rings, star, squid.
• Salt storage — I, IV, IX, XVI, which is a square-number sequence rather than a date.
• Portal device — the final gate in Cold Comfort, aligned on all four faces.

Puzzles versus safe codes

This guide splits them into two sections because players search for them in two different ways. If you are standing in front of a mechanism — symbols, levers, prisms, fuses — you want this section. If you are standing in front of a keypad or dial and just need the digits, go to all safe codes, which lists every combination in one table: 1908, 2137, 1496, 6294 and 1672.

Locked doors that need a physical key are a third category again, and they are indexed on every key and the door it opens.

If a puzzle will not accept your answer

1. Check you are reading the order in the right direction. The obelisk is read top to bottom; the ventilation arrows are read left to right.
2. Confirm the sequence, then step back. Several puzzles play an animation or a hazard — lightning at the obelisk, gas in the hotel basement — and standing in it can interrupt the completion.
3. Check your journal. Most sequences come from an evidence item; if you never picked it up, the interface may not let you enter the answer at all yet.
4. Reload the last save. Frogwares' own known-issues list includes objects and enemies getting stuck in collision, and a reload is the studio's recommended fix.