How To Play Fallout: London

ign.com:

Fly the Union Flag, plate up some beans on toast, and get the kettle on for a good brew – Fallout: London is finally here. The ambitious, long-awaited mod for Fallout 4 is now available for PC players to download for free. But diving into the British wasteland isn’t quite as easy as booting up a new videogame. Depending on what platform you’re using, Fallout 4 might require a little tinkering before it’s ready for Fallout London. Have no fear, though, for this guide will help you to keep calm, carry on, and get Fallout: London installed on your PC.

To play Fallout: London, you need to own Fallout 4 and all of its DLC packs. That’s easily acquired by purchasing the Fallout 4: Game of the Year Edition, which is the complete package. If you already own Fallout 4 and the odd one or two DLC packs, you will need to purchase what you are missing. Here’s a list of everything you need to own:

You can use the High Resolution Texture Pack (available for free) if you wish, but it is not a requirement.

You will also need to downgrade Fallout 4 to make it compatible with Fallout: London (more on that later in the guide). On top of all that, you will also need the Fallout: London mod itself. This is available to download from GOG, using the GOG Galaxy launcher. Create a GOG account if you don’t already have one and add the free mod to your account using the green button on the Fallout: London store page. Then download GOG Galaxy, find Fallout: London in your library, and download it.

Fallout 4 for PC is available on both Steam and GOG. Fallout: London can be played using either version (sorry, the Epic Games Store version is incompatible), but if you are buying Fallout 4 on PC for the first time specifically to play Fallout: London, then we recommend buying from GOG.

Why? Because the installation process is much, much simpler. Team FOLON, the developer behind Fallout: London, has a partnership with GOG. Using the GOG Galaxy platform, you’ll be able to simply download Fallout 4: