Bethesda’s updates on Steam frequently change the core Fallout4.exe file. This immediately breaks native-code plugins ( .dll files). Version 1.10.163 is highly sought after for several reasons: F04 1.10.163 update for real? - Nexus Mods Forums
is natively 1.10.163 and comes DRM-free, making it the most "official" way to own a portable, stable copy of the game. How to Achieve This Version Downgrading Steam : Many users use the Fallout 4 Downgrader fallout 4 patch 110163 portable
~35GB per instance. With modern NVMe drives, that’s trivial. Bethesda’s updates on Steam frequently change the core
Advanced users can force Steam to download specific versions using depot commands, but this requires technical knowledge and is no longer officially supported. The Simple Downgrader is strongly recommended over manual methods for most users. - Nexus Mods Forums is natively 1
for maximum portability between computers.