Animal Crossing: New Horizons Save Encryptor/Decryptor
you will need the latest .Net Framework (NOT Net standard 2.0) NHSE.Core.dll from NHSE.
then u add a reference to that .dll in Visual Studio.
then u let it build.
the resulting .exe and .dll can be found in "./bin/Debug/" or "./bin/Release".
(mono) HorizonCrypt [-b] [-c|-d] <input>
** mono can be used to run HorizonCrypt (and other .Net console apps) on Mac and Linux
HorizonCrypt -d ./main.dat
HorizonCrypt -c ./main_decrypted.dat
HorizonCrypt -b -d ./
HorizonCrypt -b -c ./