Winchester Mystery House Code Update

Winchester Mystery House Code Update 02/19/2026

DOWNLOAD UPDATE:

1. Download the current update file from here. — The previous releases are now linked on the update history page – just click on the version number link.

2. Unzip the update file to extract the “winchester.fun” file.

3. Place that “winchester.fun” file on to a USB thumb drive (32GB, Formatted FAT32 32kb and USB 3.0 recommended) Please note, do not format the usb drive with a Mac or Chromebook.

4. Open the backbox of the game and locate the PC (it’s the little black box in the middle)

5. With the game booted up (yes really it needs to be on) and running, insert the USB thumb drive into any open USB port.

6. The game will automatically update.

7. When the update is complete, The screen will prompt you to remove the thumb drive.

8. When you remove the thumb drive, the game will restart.

Change Log for the Latest Version:

Version: 2025.02.19
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ADDED: The 13ths Wizard Mode, available after all the 13ths are completed.
ADDED: Light reactions to progress in the 13ths modes.
ADDED: Some new "Wildcard" mementos to earn for specific non-room-mode gameplay tasks.
ADDED: The map will show paths visited so far this game in dark blue-green.
ADDED: When playing a room mode, that room will pulse on the map.
ADDED: Storm sound effects during the 13ths modes.
ADDED: In the unlikely event that it should become necessary, the player can trigger 
       re-homing of the turntable by holding a flipper button down and then holding 
       the action button for 8 seconds.  If either button is released, the process is 
       stopped. 
FIXED: Mystery properly disables all inserts when prevented.
FIXED: Tour path lights didn't always go off when Tour is disabled.
FIXED: Tour travel timer auto-hides any time Tour is prevented.
FIXED: There was an error that could leave the instrument targets in a bad state
       if specific things happened.
FIXED: Due to a naming error, replay auto-adjust never got processed.
FIXED: Increased audio buffer slightly to address the 'popping' issue.
FIXED: 7-11 Stair Madness score title bit wasn't formatting correctly.
FIXED: 13ths timer can't reset while the ending display is happening.
FIXED: Seance table was letting the ball out early at the end of Seance mode.
FIXED: Summon shot on the right ramp spiral exit wasn't working.
FIXED: Right ramp spiral wasn't adding to mode value while exploring.
FIXED: If the game was force-reset with a 13th running, that 13th would stay flagged
       as running on following games.
FIXED: There was an error in the final part of Seance room that could cause a crash.
FIXED: Left ramp and right orbit in Summon the Mortals 13th didn't register.
CHANGED: On Ball 2+ the score display animation doesn't wait before starting.
CHANGED: Summon shots during Summon The Mortals 13th are yellow, to match other 13ths.
CHANGED: Loops/Summons won't appear in Mystery awards if you've got that 13th complete.

Complete update history is available here.