What happens if you copy the the same folder that you sent to your family to C:\Test, does it work for you then? Otherwise, as mentioned, please provide more info.
what’s C:/Test? if you mean any folder in C: then yes it works there.
I can get something more specific tomorrow. But i’m pretty sure it’s not that the program crashes on them.
Does anyone know if unity created EXE files have any sort of built in security?
Or maybe there’s another step after the game is built i’m missing
Correct it was just a random test directory. Any directory outside your game would work. There is no “built in security”, looking forward to more information. Could be an anti-virus app seeing an unknown executable.