OpenGP 1.0.4

• Added a configurable toggle to enable going back to the previous menu (GP2 only)

Dev Note: Going back skips the photo screen and stops working once the gas confirms a choice on the current screen. Menu history resets when a race starts. This feature is disabled in linked play and does not apply to GP 1.

• Added a live profiler overlay which shows fps, frametimes and more

OpenGP 1.0.3

1.0.3 (7/11/2026)

Fixes the periodic freezes in linked races.

• Fixed the periodic freezes in linked races: the cabinets now keep in step (a cabinet runs a fraction of a percent faster or slower to follow the one that leads the race), and one that falls a frame behind catches up without freezing the race

Notes

• Update every linked cabinet to 1.0.3: the cabinets keep in step as a pair.
• Your saves, Mario Cards and settings are in the package's user/ folder. Unpack the new package over the old one, or into a new folder with user/ moved across; see Updating.

Known issues

• Races need most of a CPU core: a PC busy with something else (another game) can drop below 60 fps.

OpenGP 1.0.2

• The command-line installer is now called opengp-cli, so it is no longer mistaken for the way to install OpenGP
• The menu no longer shows your full folder path: an Open folder button opens the card or controls folder instead
• Plainer names and help text in the menu's settings, These now match the settings text from the launcher
• Aspect ratio and resolution choices now name their sizes (16:9, 1080p, 4K and so on)
• Gamepads without a Guide button (or where Steam takes it) open the menu with Back and Start held together
• Key bindings now show the correct key labels on non-US keyboards
• Fixed the default window size on high-DPI displays
• Removed debug spam from the console (use --verbose to restore pre 1.0.2 behaviour)
• Added a first-run hint for inserting a coin and opening the menu
• Improved wheel and pedal precision
• Fixed pedals reading as half-pressed until they were first moved
• Fixed pedals binding to the wrong axis half when bound before they were first moved
• The webcam no longer switches on at start-up: the game's camera check gets a picture without it
• Fixed the first photo coming out darker than intended
• Fixed audio drifting out of sync after changing the audio device
• Fixed occasional audio stutter
• Fixed a small periodic stutter on 60 and 120 Hz displays

Known issues

• Races need most of a CPU core: a PC busy with something else (another game) can drop below
  60 fps.
• Linked races can still freeze for a moment now and then; this is being fixed for 1.0.3.
• 1.0.2 cabinets link with 1.0.1 ones, but not with 1.0.0, run 1.0.1 or newer on every cabinet.

OpenGP 1.0.1

1.0.1 (2/11/2026)

Day one patch fixing a few bugs before release

• A new in-game menu replacing the original AI based menu has been added
• GP 1: fixed objects popping in at the sides of the screen in widescreen
• Windows: fixed a bug where frames would drop more than they should
• Reduced GPU work at high internal resolutions
• Fixed the picture staying blank or white after the GPU briefly ran out of memory
• Fixed a possible freeze in effects that read the picture back
• Fixed crashes and freezes caused by damaged disc images or bad game data
• Linked play: less lag between computers
• Fixed a brief freeze when a link connection was refused
• Linked cabinets on mismatched versions now tell you why they can't connect
• Fixed steering stuck at full lock when extra USB devices (pedals, handbrakes) were connected
• Fixed inputs a device doesn't have reading as half-pressed
• Steering wheels get fewer force-feedback updates: only forces that change are sent
• Fixed menu keys carrying over into the game
• Fixed a bug where binding certain keys broke the controls file
• Menu sliders now stay within their range
• "Restore defaults" now asks for confirmation
• Fixed Mario Card progress being lost when saving failed
• Fixed card and settings saves failing on Windows with OneDrive or antivirus running
• A bad value in the settings file no longer resets everything
• Settings and controls are now saved when you close the menu
• A second copy of a game can no longer share a user folder with one that is running
• Fixed the second-cabinet command not finding the game
• Fixed the game not finding its image when launched from another folder
• Fixed crashes and install failures when the folder path contains accented or non-Latin characters
• Fixed the game ignoring or crashing on ISO files with non-ASCII names
• Start-up errors are now shown in a message box
• Crashes now write a crash report (on Windows, the game tells you where it is)
• Linux: fixed the webcam staying on after a game restart
• Linux: the installer finds GCC 12 and newer Clang versions, so Ubuntu 22.04 works
• Improved compiler download feedback and recovery from interrupted installs
• Clearer messages for unsupported or compressed disc images
• Clearer errors for unwritable or zipped folders

Known issues

• Races need most of a CPU core: a PC busy with something else (another game) can drop below 60 fps.