Method 1: Replace KidGame[citation needed]
Download EXE for GOG.
Go to <path-to-game>\KillerIsDead\Binaries\Win32\
Replace KidGame.exe with the crashfix.
The crashfix.
https://community.pcgamingwiki.com/files/file/2054-killer-is-dead-crash-fix-gogcom/

Method 2: Modify game executable[citation needed]
Make sure the game is closed.
Make a backup of KidGame.exe to revert the changes if the fix does not work.
Open KidGame.exe with a hexadecimal editor like HxD.
Search for the offset 0x213E6F1 or 0x213E6F0.
Change the byte 7D to EB.
Save the file.

Method 3: Edit KidEngine.ini[9]
Open <path-to-game>\KidGame\Config\KidEngine.ini
Replace the [XAudio2.XAudio2Device] section with the following:
[XAudio2.XAudio2Device]
MaxChannels=64
CommonAudioPoolSize=320
MinCompressedDurationGame=0.3
MinCompressedDurationEditor=500
LowPassFilterResonance=0.9
WorkAroundXDKRegression=FALSE