The Sinking City 2 Safe Codes: Verified Combinations

What Are the Safe Codes in The Sinking City 2?

The verified safe codes are Devil's Reef Hotel 2137, the Fish Market Salt Storage Room I-IV-IX-XVI (1-4-9-16), and the Red Idol safe 6294. There is also a symbol puzzle at Ezekiel's Sphere in the Fish Market. Every code on this page is cross-checked against at least two independent guide sources.

The codes are fixed in every playthrough — they do not randomize. If you prefer to solve them yourself, each entry below includes how the community found it.

Devil's Reef Hotel: 2137

The safe in Devil's Reef Hotel opens with 2137. GameRant publishes the code directly and also walks through the hotel clue logic, so you can solve it without spoiling the puzzle.

To reach it, work through the hotel floors: recover the Staff Key from the third floor, open the rooms, and find the safe in the main area. The code is worth memorizing because the hotel is one of the longest chapters.

Fish Market Salt Storage Room: I-IV-IX-XVI

The Salt Storage Room in the Fish Market opens with I-IV-IX-XVI, which is the roman-numeral form of 1-4-9-16 (the squares of 1, 2, 3, and 4). AllThings.How and GameRant both document this code.

Inside you will find a Dolorocide Pill and a modification for the Grenade Launcher. The room is a high-value early-mid-game pickup, so do not skip it during the Fish Market chapter.

Red Idol Safe: 6294

The Red Idol safe opens with 6294. BlogAndGuide's guide explains that the code comes from the Eerie Statue apparitions puzzle: the final group of apparitions reveals the number 6294.

Opening the safe rewards the Heart of Stone, which activates the Red Idol statue. The puzzle requires paying close attention to the apparition sequence, so watch the statue area carefully.

Ezekiel's Sphere: Symbol Order

Ezekiel's Sphere in the Fish Market is not a number code but a symbol puzzle. GameRant's solution: place the Lantern, Eel, Coelacanth, and Angler icons in order from left to right.

The Lantern is the lighthouse icon, the Eel has two circles woven together, the Coelacanth is the star icon, and the Angler is the octopus icon. Matching the symbols in that order opens the sphere.

The Prism Puzzle

The Prism puzzle in Akeley Memorial Hospital is the other major late-game puzzle. Carry the prism to all three stations and rotate its rings until the symbols line up with each station's color.

The order is blue first, yellow second (requiring Father Nathaniel's face), and pink last (requiring the Vertebral Key, Lowe's face, and a boss fight). AllThings.How documents this sequence.

How to Find Codes Yourself

Codes are almost always written down nearby. Read every document, journal, and codex entry, and use the investigation menu to connect clues before trying combinations.

Some codes only become readable after you obtain a key item, so revisit areas with new tools. The game is designed so that investigation beats brute force — guessing wastes time and ammo.

Codes by Chapter

The verified codes appear in a logical order. The first major code area is the Fish Market chapter, with Ezekiel's Sphere and the Salt Storage Room (I-IV-IX-XVI). The Devil's Reef Hotel follows with its 2137 safe, and the Red Idol safe (6294) appears in the later puzzle chain.

The Prism puzzle in Akeley Memorial Hospital is the last major code-style puzzle. Knowing this order helps you plan which documents to prioritize in each district.

Why These Codes Are Trustworthy

Every code on this page is cross-checked against at least two independent guide sources. GameRant, AllThings.How, and BlogAndGuide publish the codes with their full puzzle logic, and their values match each other.

None of these codes come from single anonymous forum posts, and none require third-party tools. If a new code surfaces that does not meet the two-source rule, it will be marked 待确认.

What to Do When a Code Does Not Work

First, check that you are at the correct safe — some combinations look similar and players confuse the Salt Storage Room with another lock. Second, confirm you have the related key item or clue, since some safes only unlock after investigation.

If the code still fails, reload the check: seeded sessions can reset door states. The codes themselves are fixed, so a failure almost always means a wrong safe or a missing clue.

Safe Codes FAQ

Are the codes the same every playthrough? Yes, the puzzle codes are fixed.

What does the Salt Storage code unlock? The Salt Storage Room, containing a Dolorocide Pill and a Grenade Launcher modification.

Is there a master code list in-game? No — the game expects investigation; this page collects the verified answers.

Are these codes official? They are community-verified against multiple guide sources; Frogwares does not publish an official code list (待确认 if one is ever released).

What order should I use the codes? Fish Market first (Ezekiel, Salt Storage), then Devil's Reef Hotel, then the Red Idol and Prism puzzles.