The Sinking City 2 Wiki
major spoilersReviewed 8/21/2026

The Sinking City 2 Safe Codes

Direct answer

Use 1908, 1672, 2137, 1308, 1496, and 6294 only at their named locks after the listed clue or route prerequisite is active.

CodeLockPrerequisite or clue state
1908wall safe beside To Martindq7 calls the door Apartment 5; NerdsChalk calls it Apartment 6. From A Sister supplies the radio shop's age.
1672Redemption Church floodgateRead the church-origin and bell-report evidence; use the bell year.
2137Room 301 safe, Devil's ReefRead the Safe Code Letter with the Baby, One More Tide lyrics.
1308Akeley Storage gateBring Anti-Rust Acid and collect the four ordered digit notes.
1496Fish Market Locker Room safeReach the Locker Room after completing the market clue chain.
6294past Abandoned Office safeTrigger the memory conversations and follow their clue sequence.

Checked code table

Code Lock Prerequisite or clue state
1908 Wall safe beside To Martin dq7 labels the door Apartment 5; NerdsChalk labels it Apartment 6. Read From A Sister for the radio shop’s age.
1672 Redemption Church floodgate Read the church-origin and bell-report evidence; this is the bell year, not the church year.
2137 Room 301 safe, Devil’s Reef Reach the third-floor room and read the safe letter with the “Baby, One More Tide” lyrics.
1308 Akeley Hospital storage gate Reach the rusted Storage route with Anti-Rust Acid and collect the four digit notes.
1496 Fish Market Locker Room safe Reach the Locker Room; the full clue chain completes later in the market route.
6294 Past-version Abandoned Office safe Trigger the Fish Market memory sequence and listen to its successive conversations.

Codes that are not interchangeable

The Fish Market contains both 1496 and 6294, but they open different safes in different states of the area. The hotel’s 2137 is also separate from its Staff Key and Lorelei Lock progression.

If a code is rejected

Confirm the correct lock and active quest state before trying variants. Some doors require a key or tool rather than a number, and the Wireless Room uses three sequential frequencies instead of a four-digit safe code.

Sources

Reviewed: 8/21/2026

Related guides

Guide index

The Sinking City 2 Puzzles

Jump to a verified fixed code or area puzzle, with prerequisites and common failure states kept beside each answer.

Open guide
Guide index

Fuse Box Puzzle and 1908 Safe Code

The wall safe beside To Martin opens with 1908 despite Apartment 5/6 guide labels; collect the radio-shop fuses, connect matching wire colors, then Validate.

Open guide
Guide index

Devil's Reef Hotel Puzzle Solutions

Room 301's safe code is 2137, but hotel progression is the separate Staff Key, three-token, three-key, Lorelei Lock chain.

Open guide
Guide index

Akeley Memorial Hospital Puzzle Solutions

Enter the Wireless Room frequencies as 13, then 5, then 36; finish the clue chain before tuning, and route Prism colors separately.

Open guide
Guide index

Arkham Fish Market Puzzle Solutions

Use 1496 for the Locker Room safe, I/IV/IX/XVI for Salt Storage, and 6294 for the past office safe; keep each input tied to its own mechanism.

Open guide