Greetings, gamers! In this guide, we will walk through the process of solving the Wall Safe Puzzle in the Nurse Stationin SIGNALIS. Unlike static puzzles, this one requires some problem-solving, as the combination changes in every playthrough. Here’s everything you need to know to crack the safe efficiently.

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What You Need to Solve the Puzzle

Before attempting to open the safe, ensure you have the following:

1. Frequencies File – This document is necessary to proceed.
2. Symbol Memo – Found in the Waiting Room, this memo corresponds to the symbol on your safe.

Your safe’s symbol determines the frequency you’ll need to tune into on your radio.

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Step-by-Step Solution

1. Identify the Safe’s Symbol

• Each safe has a specific symbol, such as Sword (your symbol may differ).
• Locate the Symbol Memo in the Waiting Room that corresponds to your safe’s symbol.

2. Find the Corresponding Frequency

• Look up the frequency tied to your symbol from the Frequencies File.
• Example: If your symbol is Sword, the frequency might be 227 kHz.

3. Tune into the Correct Frequency

• Use your Radio to tune into the identified frequency.
• The radio will output a five-digit code (e.g., 19280).

4. Match the Letters to Numbers

• On the safe interface, the left side shows letters, while the right side lists numbers.
• One letter is blanked out, and you must deduce the missing letter.
• Cross-reference this with your Symbol Memo to determine the missing letter.

5. Use Deduction to Find the Missing Letter

• Take a photo of the memo for reference.
• Compare the provided sequence to identify the missing character.
• Example:
  • Memo Sequence: A = 1, N = 2, B = 3, etc.
  • If 8 is missing, and F is the only letter missing in the sequence, then 8 = F.

6. Input the Correct Code

• Translate your radio’s code using your memo’s sequence.
• Example:
  • 1 → A, 9 → N, 2 → K, 8 → F (deduced), 0 → E
  • Final Code: ANKFE

7. Unlock the Safe

• Enter the letters in the safe and confirm.
• If done correctly, the safe will unlock.

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Safe Contents

Once the safe is open, you will receive:

• The Tape Module
• The Incinerator Room Key

These items are crucial for progressing further in SIGNALIS.

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Final Thoughts & Tips

• This puzzle is randomized for each playthrough, so following this method will help solve it regardless of changes.
• Take a screenshot or photo of the Symbol Memo to make the process easier.
• Always cross-reference the numbers with the memo rather than relying on what is displayed directly on the safe.

I hope this guide made the solution clearer! If you found it useful, consider checking out other SIGNALIS guides. Stay safe, frost, and always strive for perfection! Cheers!