Note that some versions of these tools may not work with the Uplay+ (Ubisoft+) version of the game due to different executable encryption. AC Odyssey Tweak Pack - Nexus Mods
First, let’s clarify the name. "156" refers to game version 1.5.6, the final major patch for AC Odyssey. The Tweak Pack is a collection of modified .ini and .dll files (originally crafted by modders like and Fokey on Nexus Mods) that unlock hidden rendering settings.
[TweakPack] ; Remove fog entirely (great for performance, ruins atmosphere) DisableFog=1
Here is a breakdown of what this tweak pack is, why players are searching for "156," and how to get it working for the current version of the game.
Windows 11 introduced new graphics security (HBAS). The tweak pack’s proxy DLL may be blocked.
: Before applying any Tweak Pack changes, always create a copy of your ACOdyssey.exe file. If the tool fails or corrupts the file, you can restore it without reinstalling the entire game.