Fallout: London – How to Install & Play on GOG or Steam

Fallout 4’s most anticipated mod, Fallout: London has officially been released on GOG and Steam after five years of development and several delays. However, despite the launch many fans have been facing issues regarding installing and playing the mod mostly on the Steam version. It is because of the official Next-Gen Update for the game as the mod requires the previous version to be played.

This guide will explain the method to install and play Fallout: London for both the GOG and Steam versions of Fallout 4.

Fallout: London Requirements

Before we discuss the methods to install and play Fallout: London on GOG and Steam, you must first know the requirements for Fallout: London. These requirements are necessary for you to download the Fallout: London mod for your corresponding version of the game.

• Own the Fallout 4 base game and all its DLCs and Content Packs on either GOG or Steam.
• If you own the game on Steam, you need Fallout 4 version 1.10.163.0 to be able to run Fallout: London.

How to Install & Play Fallout: London on GOG

If you own Fallout 4 and all its DLCs on GOG, it will be a straightforward and easier method for you to install and play the Fallout: London.

1. Download the GOG Galaxy Launcher.
2. Run the Galaxy Launcher.
3. Download Fallout: London from its store.
4. Install Fallout: London.
5. Play it from the launcher.

Owning Fallout 4 on GOG will not require you to downgrade its version as the mod automatically downgrades the version during its installation.

How to Install & Play Fallout: London on Steam

If you own Fallout 4 and all its DLCs on Steam, you will have to downgrade the game’s version manually. To do so, follow the following steps.

1. Download the Fallout London Downgrader and Addons mod from Nexus Mods.
2. Run the installed mod.
3. Enter the installed path of Fallout 4.
4. Run Steam and then select the ‘install’ option.
5. Wait for the downgrade process to complete.

Once done, follow the same steps mentioned above under the GOG headline to download and install Fallout: London.

NOTE: Fallout: London runs from the Galaxy Launcher once it is installed, so don’t play it from the Steam.