Winchester Mystery House Code Update 01/14/2026
OPTION 1: UPDATE VIA THE INTERNET
WiFi Updates are not available for Winchester Mystery House at this time. Sorry for any inconvenience.
OPTION 2: MANUAL 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 “dune.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: 2025.01.14
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FIXED: the score sliders for wheelbarrow/shot value having the wrong titles
FIXED: Seance multiball display exit signal wasn't hooked up
FIXED: Bad LED arrow reference in the 13ths controller that would crash
FIXED: Tweaks made to Daisy to prevent problems on a second use in the same game.
FIXED: Web catch events for the right orbit stacked onto the web frenzy would not work
FIXED: The PF Spirit Energy display not resetting the bottom line on a second start.
FIXED: The spirit energy display could get stuck on the playfield display
FIXED: Tour becoming prevented during the grace period would sneak back into active when grace ended
FIXED: Resetting the 13th timer during the grace period could end up in the timer going up, but the
mode ending anyway
FIXED: Hitting the X target to boost energy when in grace period would still trigger cash out starting
FIXED: Starting a mode during a wheelbarrow hurry up wasn't properly cancelling the hurryup
FIXED: Wheelbarrow hurryup wasn't getting cut off with ball ending
FIXED: Skillshot boosting the next room value didn't update the on screen display
FIXED: Changed logic for the 'force destination' so that a prevent/allow cycle doesn't remove it
FIXED: The "get further path" options weren't advancing through "junction" rooms (like foyer)
FIXED: credits available on the in-game score display wasn't refreshing if credits were added
FIXED: hall rotation for stairway drop to subway wasn't high enough priority for all situations
FIXED: "travel begin" was rotating the hall to position 1 with no regard to safety of movement
CHANGED: Toned down the color backing on the 13ths start
CHANGED: Tweaked the seance multiball ball-startup steps to try to clear up a problem on ball 3 pity mb
CHANGED: Changed up the way super spinner starts to put less delay before starting it
CHANGED: Increased the time the 'last scores' display will show when triggered with flippers
CHANGED: Can double flip to see last scores during the game over animation
UPDATED: Several fixes to service menu items for the production line
