Winchester Mystery House Code Update 08/20/2026
DOWNLOAD UPDATE:
1. Download the current update file from here
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: 2026.08.20
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- FIXED: The change with 13ths not preventing seance MB was done wrong;
would get stuck at the end of Seance Room if you win.
- FIXED: Tower goes back up in seance multiball after getting super jackpot
- CHANGED: the right ramp divert & magnet kick in to help if left hall
is lit in seance multiball
- CHANGED: Updates to table positions in multiball situations to avoid
"valleyed" paths if a ball sneaks in the top due to magnet
shenanigans.
- CHANGED: Adjustments to how travel values build through the game.
- The starting base value does not increase based on the
number of rooms played.
- The "build" values for actions taken while travelling
increase based on total rooms played instead.
Version: 2026.08.13
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- ADDED: South Conservatory - "The Watching Glass"
- ADDED: North Conservatory - "What Lies Beneath"
- ADDED: "Instant Info" game information.
- ADDED: Callouts for extra ball is lit.
- CHANGED: 13ths modes (non-wizard) do not prevent Seance multiball.
- CHANGED: Kitchen room image updated with a nicer one.
- FIXED: Idle ghost loops didn't play in Ambush/reckoning
- FIXED: Spirit spinner countdown time would go to -1.
- FIXED: Some issues with the scale/zoom on the tour map display.
- FIXED: Spirit Spinner value wasn't using the 2x/3x energy multiplier
- FIXED: getting spirit energy (from a memento) during the jackpot collect of
an already running spirit energy was re-lighting the energy target
and hitting it would wipe out the jackpot collect.
- FIXED: Sarah's final hurry-up would fail to start if balls were already
on the seance table and shifted together cleanly when releasing
one, which prevents the lock 1 switch from registering.
