Known Issues

Windows Vista/7/8 : Inside your user folder, usually C:\Users\<username>\My Documents\My Games\Binding of Isaac Rebirth



: Inside your user folder, usually C:\Users\<username>\My Documents\My Games\Binding of Isaac Rebirth Windows XP : Inside your user folder, usually C:\Documents and Settings\<username>\My Documents\My Games\Binding of Isaac Rebirth



: Inside your user folder, usually C:\Documents and Settings\<username>\My Documents\My Games\Binding of Isaac Rebirth Mac OS X : ~/Library/Application Support/Binding of Isaac Rebirth/



: ~/Library/Application Support/Binding of Isaac Rebirth/ Linux: ~/.local/share/binding of isaac rebirth

Windows : Inside your Steam install folder, usually C:\Program Files (x86)\Steam\userdata\[account id]\250900\remote



: Inside your Steam install folder, usually C:\Program Files (x86)\Steam\userdata\[account id]\250900\remote Mac OS X : ~/Library/Application Support/Steam/userdata/[account id]/250900/remote



: ~/Library/Application Support/Steam/userdata/[account id]/250900/remote Linux: ~/.steam/steam/userdata/[account id]/250900/remote

Afterbirth crashes/glitches on startup, Rebirth ran fine

Crash on game initialization

timeBeginPeriod( 1 ) GLFW Error 65542: WGL: The driver does not appear to support OpenGL GLFW Error 65542: WGL: The driver does not appear to support OpenGL Failed to create OpenGL window / context Caught exception, writing minidump...

Try installing the most recent graphics drivers. Sometimes it helps to uninstall the drivers included with the operating system and installing the ones directly from the vendor site (NVIDIA, AMD, Intel ...).



If you have both an integrated on-board graphics chip, and a discrete graphics card, make sure running the game on the discrete graphics card.

Keyboard getting stuck randomly

Sound effects not working

Install the OpenAL libraries from https://www.openal.org/downloads/oalinst.zip



Go to your game folder by right-clicking on "The Binding of Isaac: Rebirth", then selecting "Properties", "Local Files", "Browse Local Files..."



Delete or rename OpenAL32.dll

Speed issues, unstable framerate

Performance issues, or shader problems

[Options] EnableColorCorrection=0 EnableCaustics=0 EnableShockwave=0 EnableLighting=0 EnableFilter=0 EnablePixelation=0 EnableBloom=0 EnableWaterSurface=0 EnableInterpolation=0

Audio noise for hardware connected on USB

Motion sickness caused by the camera

Hey everyone!Thanks for being patient with us so far.Here is a list of issues we already know about. If possible, we will provide instructions on how to fix them on your end.If you encounter a bug not in this list, make sure to send a detailed bug description to isaac@nicalis.com , along with any log files, crash dumps, screen shots, saved games you think might help us.Locate the save data directory in the following location, depending on your operating system:Locate your Steam Cloud remote directory in the following location, depending on your operating system. This is where your saved games are located:This might be caused by leftover Rebirth mods. After installing Afterbirth, make sure to get rid of all Rebirth mods.Right click on the game in your Steam client, go to "Properties", "Local Files", "Browse Local Files..."Enter the "resources" folder. There should be one folder in there called "packed". Anything else in the "resources" folder (xml files, gfx folder, etc) you should probably delete if you have issues with running Afterbirth.Some people are not able to start the game right now. Usually the "Preparing to start game window" pops up and nothing happens. The log looks like this:Most likely some OpenGL extensions are not supported by your graphics card or driver. There is nothing we can do about that at the time being.Binding of Isaac: Rebirth needs OpenGL 2.0 support, OpenGL 3.0 is recommended. If your graphics card does not support OpenGL 2.0, you are probably out of luck.Another common reason for the game to crash at startup is that the game files are broken. You can tell the Steam client to automatically check the game files for errors and re-download broken ones. Right click on "The Binding of Isaac: Rebirth" in your games list, select "Properties", "Local Files", "Verify Integrity Of Game Cache..."This seems to mostly happen on the Logitech G110 keyboard, but others might be affected, too. Try to disable controller hotplugging.You can disable gamepad hotplugging by changing "ControllerHotplug=1" to "ControllerHotplug=0" in the Options.ini file, which is located in your save data folder. Look at the top of this page for instructions on how to locate the save data folder on your PC.A common issue seems to be that the music is working, but the sound effects are either missing or only coming from one side of your Stereo speakers.You can try different settings for your speakers, e.g. switch from Surround to Stereo mode or vice versa.What could also work is using a different version of the OpenAL libraries.If the instructions above solve your sound effects problem, we would appreciate a short mail to isaac@nicalis.com For some players the game is running either too fast or too slow, on systems where performance is not the issue. If you are experiencing this, try disabling VSync by changing "VSync=1" to "VSync=0" in the Options.ini file, which is located in your save data folder. Look at the top of this page for instructions on how to locate the save data folder on your PC.In case you are suffering from speed issues because of slow graphics hardware, or if some shaders don't work for you, you can disable certain effects.Locate the resources folder by right clicking on the game in your Steam client, then selecting Properties, Local Files, Browse Local Files. Double click on the resources folder.On Mac you have to right-click on the app bundle, select "View Package Contents", go into Contents/Resources/resources, then create the file there.Create a new file called "config.ini" with the following content.This will disable most special effects. If you only want to disable certain effects, you can do so by replacing 0 by 1 for some options. I would recommend leaving the EnableLighting option on because it adds a lot to the game's atmosphere.For some weak graphics cards, the fill rate might be a problem. Open the options.ini file in your save data folder with a text editor. Look at the top of this page for instructions on how to locate the save data folder on your PC. Look for a line saying "MaxRenderScale=2" and change that to "MaxRenderScale=1".This will make the scrolling more choppy and add some artifacts to scaled sprites, so you might want to change it back in case your experience isn't improved by it.If you experience crackling, or otherwise scrambled audio, and your audio hardware is connected via USB, it might be that the gamepad hotplugging is interfering with your USB.You can disable gamepad hotplugging by changing "ControllerHotplug=1" to "ControllerHotplug=0" in the Options.ini file, which is located in your save data folder. Look at the top of this page for instructions on how to locate the save data folder on your PC.What also might help is to avoid connecting your audio hardware (speakers, headphones, headset, microphone) via USB, if that is an option for you.You can switch to a different camera mode by changing "CameraStyle=1" to "CameraStyle=2" in the Options.ini file, which is located in your save data folder. Look at the top of this page for instructions on how to locate the save data folder on your PC.