If you encounter the 'Checking Patch File Difference' error in Once Human, there are a few troubleshooting steps that can help you resolve it. While players have reported that one of these methods worked for them, if it doesn't work for you, you should reach out to support. They'll walk you through some advanced troubleshooting steps. But first, try the solutions we've listed below.
Once upon a time, man was stuck checking the differences in the patch file
The "Checking Patch File Difference" error in Once Human occurs when the game launcher encounters a problem while verifying the integrity of the game files. This can happen because some files are corrupted, missing, or there is a problem with the Steam launcher.
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The first and safest thing you can do in this case is to verify the game files on Steam.
