MOUSE: P.I. For Hire Secret Door Codes (Location)

If you’ve reached the late-game areas in MOUSE: P.I. For Hire, you might’ve heard about a mysterious locked door in The Depths. And yeah… the game doesn’t really help you remember the codes.

So here’s everything — how to find the door, how to reach it, and all currently known codes.

MOUSE: P.I. For Hire Secret Door Codes (Location)

It’s exactly what it sounds like:

  • A locked door that requires a 4-digit code
  • Each code unlocks something different inside
  • You also get loot or unique scenes

The tricky part?

The codes are scattered across the game — and if you didn’t note them down, you’re basically guessing.

How To Reach The Secret Door (Step-by-Step)

You won’t even be able to access this area until you reach a specific point.

Requirement:

  • You must have the quest “Shrewd Shrews”

Route to the Door:

  1. Enter The Depths level
  2. Progress normally through the level
  3. You’ll eventually reach a massive elevator
  4. Ride it down

After exiting:

  • Take a left turn immediately
  • Keep moving left until you see a building
  • Go up the stairs
  • Enter the door

Inside, you’ll find the code input room

All Secret Door Codes (Every Known Code)

Here are all the currently discovered codes:

  • 1234
  • 0451
  • 2137
  • 3125
  • 1920
  • 0316
  • 2019
  • 1224

What Happens When You Enter Codes?

Each code:

  • Opens the door
  • Shows something different (rooms, references, or secrets)
  • Rewards you with loot or unique interactions

Some of these are clearly references or easter eggs, so don’t expect all of them to be gameplay-focused.

Interesting Notes

  • 0451 is likely a reference (common code in games like immersive sims)
  • Some rooms seem to recreate familiar scenes or themes
  • One player reported a black mouse statue appearing after entering a code

So yeah — not everything here is straightforward rewards. Some are just there for mystery or lore vibes.

This door is one of those classic “you either kept track… or you didn’t” mechanics.

If you:

  • Paid attention → you might’ve found a few codes
  • Didn’t → this list saves you hours

Either way, now you’ve got all of them.