Turned on Windows' Ransomware prevention tool boringly named "Controlled Folder Access". This is a fascinating tool.
Most especially, because it's a constant reminder of how terrible games are at security.
Why does this game need 4 different executables modifying controlled files? Why is one of the EXEs in My Documents folder?
I'm starting to want finer-grained controls (yes, but only folders x, y, and z) and "Temporarily Allow" with a lockout timer.