He downloaded a binary patcher from a modding nexus. It was a sketchy, small program. He hesitated. This was how you got crypto-miners. But the source code was open on GitHub. He scanned it, saw nothing malicious, and hit 'Run'.
Since you're bypassing Steam, you need to know where to find mods. Here are the best non-Steam sources for updated mods:
The Repentance mods folder is usually located in your user document files. the binding of isaac repentance mods no steam updated
Download the mod from a reputable source (e.g., Modding of Isaac).
The issue appears to be related to the game's decision to use a new modding API (Application Programming Interface) that is not compatible with older mods. This new API was introduced in the game's latest update, and it's causing problems for modders who have not updated their mods to work with the new API. He downloaded a binary patcher from a modding nexus
After placing the files in the directory, launch . From the main menu, navigate down to Mods and press Enter. You will see a list of all manually installed mods.
: Download the mod (usually a .zip or .rar file) and extract its contents into a new subfolder within the mods directory. This was how you got crypto-miners
Note: If the mods folder does not exist inside the "Binding of Isaac Repentance" directory, simply create a new folder and name it exactly mods (lowercase). 3. Step-by-Step Manual Installation Guide