Last Updated: August 18, 2026
If you're stuck at the first safe in The Sinking City 2, the combination is 1908.
The safe is in Apartment 5, and the clue is tied to the Allen Radio Store, where you can see "Est 1908". The nearby "To Martin" note points you toward the significance of the number. Current launch-day walkthrough coverage confirms this sequence and the 1908 solution.
📋 Table of Contents
- Apartment 5 Safe Code
- Where Is the Apartment 5 Safe?
- How to Find the 1908 Clue
- Can You Open It Before Finding the Clue?
- What Do You Get From the Safe?
- Why the Clue Is Easy to Miss
- Do You Need to Complete the Investigation?
- What If 1908 Doesn't Work?
- What Happens After Apartment 5?
- Quick Reference
- FAQ
Apartment 5 Safe Code
Enter:
The combination is 19-08, or 1908 when entered as four digits.
The number comes from the Allen Radio Store, which displays "Est 1908". The store appears during the opening section of the game, making this an environmental clue rather than a number simply written beside the safe.
The safe itself is found in Apartment 5.
Quick solution: Apartment 5 → Find the safe → Enter 1908 → Open it
If you want to solve the puzzle naturally rather than simply use the code, keep reading.
Where Is the Apartment 5 Safe?
The safe is located inside Apartment 5 during the opening section of The Sinking City 2.
After exploring the initial apartment area, continue through the building until you can access the apartments. The safe is inside Apartment 5, alongside the "To Martin" note.
The game's opening area then expands into an interconnected route through Arkham, with players travelling between locations by boat and exploring buildings along the way. GamesRadar's current walkthrough places the Allen Radio Store and the Apartment 5 safe within this early sequence.
Quick route: Building → Apartment 5 → Safe → Enter 1908
If you're only interested in opening the safe, you don't need to complete the entire clue chain first.
How to Find the 1908 Clue
Want to solve the puzzle yourself? Here's the intended logic.
- Find the "To Martin" note – Inside Apartment 5, examine the "To Martin" note near the safe. The note refers to the combination as Martin's "proudest, most miraculous moment." That doesn't immediately give you a number, so you'll need to continue exploring.
- Continue through the opening area – Leave Apartment 5 and continue following the early exploration route. Eventually you'll reach the Allen Radio Store.
- Look at the Allen Radio Store – Pay attention to the writing on the storefront: Est 1908. That's the number you're looking for. GamesRadar specifically tells players to make a note of "Est 1908" for later, confirming that this environmental detail provides the safe combination.
- Connect the clues in Investigations – The Sinking City 2 has an Investigations system that lets you connect related evidence. When matching clues are combined into a complete group, the game can award upgrade points, so it's worth checking the Investigation tab instead of simply collecting notes and forgetting about them. For this puzzle, the logic is: "To Martin" → "proudest, most miraculous moment" → Allen Radio Store → "Est 1908" → 1908
- Return to Apartment 5 – Once you know the number, head back to the safe.
- Enter 1908 – Set the combination to: 1 → 9 → 0 → 8. The safe opens.
Can You Open the Safe Before Finding the Clue?
Yes. This is useful if you're writing down safe combinations as you encounter them.
You don't have to wait until you've reached the Allen Radio Store. If you already know the answer is 1908, you can enter it when you first reach the Apartment 5 safe. Current walkthrough coverage specifically confirms that the safe can be opened before completing the later clue discovery.
So you have two options:
- Fast solution: Find Apartment 5 → enter 1908 → open the safe
- Investigation solution: Find "To Martin" → explore → find Allen Radio Store → see "Est 1908" → connect the clues → return → enter 1908
If you're focused purely on progression, the first option is faster.
What Do You Get From the Apartment 5 Safe?
The Apartment 5 safe is an optional early reward rather than a combination you need to advance the main story.
Current launch coverage describes the safe as providing useful supplies, including healing items and ammunition, making it worthwhile to open even if you already know the code.
We are deliberately keeping the reward description broad here rather than listing a precise inventory, because the important player-facing information is the location and combination, and those are the elements independently confirmed by current launch coverage.
Why the Apartment 5 Safe Clue Is Easy to Miss
The puzzle can initially feel confusing because the safe appears before the number is obvious.
You can encounter:
- the safe,
- the "To Martin" note,
- an incomplete clue,
without immediately knowing what combination to enter.
The game then places the missing information elsewhere in the environment. The Allen Radio Store provides the critical "Est 1908" detail, turning the seemingly vague note into a concrete four-digit combination.
This is also a good introduction to how The Sinking City 2 expects you to investigate its environments rather than simply search containers for a code.
Do You Need to Complete the Investigation to Open the Safe?
No. The Investigation system helps you understand and connect evidence, but you don't have to complete the investigation chain to use the safe combination.
If you already know 1908, you can simply enter it.
However, completing Investigation groups is still worthwhile because matching related clues can provide upgrade points. So if you're playing for exploration and upgrades, don't automatically skip every investigation clue just because you know the safe code.
What If 1908 Doesn't Work?
If you're standing at the safe and 1908 isn't working, check the following:
- Make sure you're at the Apartment 5 safe – The relevant safe is in Apartment 5, not Apartment 6.
- Enter the complete number – Use 1908 rather than trying to enter only 19 or 08.
- Check the clue – The environmental clue is: Allen Radio Store → "Est 1908". That's the number used for the safe.
- You don't need to wait for the Radio Store – If you're still early in the game, you can use 1908 without first completing the clue chain.
What Happens After Apartment 5?
Apartment 5 is part of the game's early investigation and exploration sequence rather than an isolated puzzle.
After moving through the apartments and surrounding buildings, you'll encounter the Allen Radio Store and eventually the next objective involving the fuses and gate.
The current GamesRadar walkthrough identifies the opening progression as:
- Apartment exploration → Allen Radio Store → fuse investigation → Miskatonic Library Annex
and provides the subsequent Gate Fuse Box solution as part of the same opening-area walkthrough.
That makes the Apartment 5 safe a useful early introduction to the game's combination of environmental clues, exploration and Investigation mechanics.
Apartment 5 Safe Puzzle — Quick Reference
The Apartment 5 location, 1908 combination and Allen Radio Store clue are supported by current launch-day walkthrough coverage.
FAQ
What is the Apartment 5 safe code in The Sinking City 2?
The Apartment 5 safe code is 1908. The number comes from the Allen Radio Store's "Est 1908" marking.
Where is the 1908 safe?
The safe is inside Apartment 5 during the opening section of The Sinking City 2.
What is the clue for the Apartment 5 safe?
The first clue is the "To Martin" note near the safe. It refers to Martin's "proudest, most miraculous moment." The later Allen Radio Store marking reveals the number 1908.
Where is the Allen Radio Store?
The Allen Radio Store is encountered during the opening exploration sequence. Look for "Est 1908" on the store. That number provides the safe combination.
Can you open the Apartment 5 safe before finding the Radio Store?
Yes. You can enter 1908 as soon as you reach the safe. You don't have to discover the Radio Store first.
Do I need to connect the clues in the Investigation menu?
No. You can open the safe without completing the Investigation connection. However, completing Investigation groups can award upgrade points, so investigating the clues is still worthwhile.
Is Apartment 5 or Apartment 6 the safe location?
Apartment 5 is the safe location. Apartment 6 is part of the subsequent early-game investigation.
Related Guides & Sources
- Beginner Guide: Investigation, Combat, Upgrades & Survival Tips
- The Sinking City 2 Steam Community – Join the discussion, share tips, and stay updated on the latest community discoveries.
- r/TheSinkingCity on Reddit – Early release discussion, puzzle solutions, and player experiences.
- Gamesradar
Bottom Line
If you're standing in front of the Apartment 5 safe and just want the answer:
If you want to solve it naturally, find the "To Martin" note, continue exploring until you reach the Allen Radio Store, and look for "Est 1908". That environmental clue gives you the four-digit combination.
And importantly, you can use 1908 immediately without waiting to discover the Radio Store.
Guide for The Sinking City 2
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