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Home > Mods > How To Install Fallout 3 Script Extender (FOSE)

How To Install Fallout 3 Script Extender (FOSE) & Use Anniversary Patcher

If you want to try out mods in fallout 3 it is important to know about FOSE. Learn how to install Fallout 3 Script Extender.

Fallout 3 is an open-world RPG game set in a post-apocalyptic time. Fallout 3 was released back in 2008 but the game still has a modding community. And if you want to try out some mods for Fallout 3 it is crucial that you know about FOSE. So in this guide let us take a look at how to install Fallout 3 Script Extender. Also, learn how to install Fallout Anniversary Patcher to enable FOSE after update 1.7.0.4.

How to Install Fallout 3 Script Extender (FOSE)

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how to install fallout anniversary patcher in fallout 3

  1. Search FOSE on google and go to the official website.
  2. Download the stable or the beta version of the 7z archive of FOSE. At the time of writing this article, the latest stable version is fose_v1_2_beta2.7z and the latest beta version is fose_v1_3_beta.7z.
  3. Open File Explorer and go to the location where you save the FOSE 7z archive.
  4. Extract the FOSE 7z archive file in its own folder.
  5. Open Steam.
  6. Find Fallout 3 in your Steam library. Right-click on it and click properties.
  7. Go to the Local files tab and click on browse local files.
  8. Your File Explorer will open in the Fallout 3 directory. In this directory, you should be able to see the Fallout 3 executable.
  9. Go to your FOSE folder where you extracted all the files. Move all the files from this folder to the Fallout 3 directory.
  10. Make sure you move it in the directory and not in some folder in the directory. If the directory asks you to overwrite any files then choose yes.

If you do the above steps correctly you will have successfully installed the Fallout 3 Script Extender. One thing to remember is in order to use the mods you will have to run the game through fose_loder.exe.

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There is still an issue here and that is if you have the latest fallout 3 version installed then FOSE won’t work. But you can get it to work with the help of the Fallout Anniversary Patcher.

How to Use the Fallout Anniversary Patcher to Enable FOSE

  1. Go to Nexus Mods and search for Fallout Anniversary Patcher. Download the zip file.
  2. Extract the Fallout Anniversary Patcher in its own folder.
  3. Open your Fallout 3 folder and move all the extracted files from the previous folder to this directory.
  4. Once all the files are moved to the Fallout 3 directory, launch the patcher application.
  5. A black console-like screen will appear press Enter to continue.
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If you follow the above steps correctly FOSE will start working again properly. You can also test this by launching Fallout 3. Press the Tilde Key(~) and type “getfoseversion”. This will show you the currently installed FOSE version.

That covers everything you need to know on how to install FOSE and Fallout Anniversary Patcher. If you like playing the Fallout series be sure to check out how to install F4SE in Fallout 4.