Delta patcher for Anniversary edition to 1.10.163 or 1.10.984 available on Nexus

[deff.]

For those who forget to turn off automatic updates - this mod is your friend. 

 

1. Download Delta Patcher
2. Download one of your desired game version patch (1.10.163 or 1.10.984)
3. Backup Fallout.exe, Falloutlauncer.exe and steam_api64.dll
4. Download Backported Archive2 Support System, install it with mod manager.
5. Extract from zip Delta patcher to your Fallout 4 folder
6. Extract your game version patches to Fallout 4 folder
7. Add Delta patcher to Mod Organizer 2 as executable
8. Run Delta Patcher through MO2
9. Apply all three patches to default Fallout.exe, Falloutlauncer.exe and steam_api64.dll
10. Run the game as usual

 

 

At the moment only one issue - AAF menu is fcked up. Instead of letters - squares. Maybe need to launch a new game, but I'm not sure. 

Edited November 10, 2025 by deff.

[rigothamus]

It doesn't work, I can patch the .exe, the launcher.exe, but not the steam_api, I get an error "wrong file". my game was next-gen. 

[deff.]

7 hours ago, rigothamus said:

It doesn't work, I can patch the .exe, the launcher.exe, but not the steam_api, I get an error "wrong file". my game was next-gen. 

 

 

Maybe you are using wrong patches?

[rigothamus]

nope I used the good one for the next-gen, I tried also the patch update, but I still get the same error "the file you are trying to patch is not the right one"

 

[deff.]

43 minutes ago, rigothamus said:

nope I used the good one for the next-gen, I tried also the patch update, but I still get the same error "the file you are trying to patch is not the right one"

 

 

Hmm, weird. I used to roll back to 1.10.163 - don't know how, but game updated automatic. Even with all restrictions for auto update. My old setup is working

[E. Gairhald]

I think, as usual, we'll have to wait a couple of days for the mods to update. In these cases, instead of complaining, I just clean up translations and edit images. As the saying goes, "every cloud has a silver lining."

[steelpanther24]

4 hours ago, E. Gairhald said:

I think, as usual, we'll have to wait a couple of days for the mods to update. In these cases, instead of complaining, I just clean up translations and edit images. As the saying goes, "every cloud has a silver lining."

Several mod authors are no longer active, so some mods will remain in a broken state.  

 

This is one of the reasons why I left Skyrim, though now I have waited long enough, I have forgotten my "must have mods" for Skyrim.   In fact I may even play vanilla Skyrim.  

[Sir.DiesAlotol]

ive given up. im just remembering the good times i had with certain mods......

R.I.P Fallout 4

Nov 9, 2015 -Nov 11,2025
The War is Over. 
You have earned your rest.

[rigothamus]

14 hours ago, deff. said:

 

Hmm, weird. I used to roll back to 1.10.163 - don't know how, but game updated automatic. Even with all restrictions for auto update. My old setup is working

I found another solution, and it works perfectly: https://www.reddit.com/r/FalloutMods/comments/1otpjda/fo4_command_line_for_downgrading_back_to_1109840/

 

thx for you help