Fallout London V102iv233r7 Gog Install May 2026
Here’s a feature-style guide for Fallout: London v1.02 (iv233r7) specifically focused on a GOG installation — written as if for a gaming site or modding blog.
4. Post-Install
- Launch the game via
FalloutLondon.exe (not the original FO4 exe).
- Do not launch through GOG Galaxy (it may try to “repair” to vanilla FO4).
- Disable automatic updates for Fallout 4 in GOG Galaxy → Settings → “Automatically update to newest version” → Off.
Step 1: Downgrading Fallout 4 (The Most Important Step)
Unlike Steam users who have to wrestle with a downgrader, GOG users have a native advantage. fallout london v102iv233r7 gog install
- Open GOG Galaxy.
- Navigate to your Library and click on Fallout 4.
- Click the settings cog (⋮) next to the "Play" button.
- Select "Manage Installation" -> "Configure..."
- Go to the "Beta Channels" tab.
- From the dropdown menu, select "1.10.163 - Pre-Next-Gen".
- GOG Galaxy will immediately download the correct files.
Verification: Once complete, your game should read version 1.10.163.0 in the main menu. If it says 1.10.984 or higher, stop immediately. Here’s a feature-style guide for Fallout: London v1
2. Game Preparation (Critical Step)
Fallout: London requires the "Next-Gen" update. GOG users must verify their game version: Launch the game via FalloutLondon
- Launch GOG Galaxy.
- Navigate to Fallout 4.
- Click the settings icon -> Manage Installation -> Configure.
- Ensure the game is updated to the latest version. The executable version should correspond to the Next-Gen update (approx. version 1.10.984 or higher).
- Clean Install Recommended: To prevent file conflicts, it is highly advised to perform a clean installation of Fallout 4 before installing the mod. Delete the
Data folder and the Fallout4.ini file in Documents/My Games/Fallout4 to reset settings.
Step 2: Downgrade Fallout 4 (Critical for GOG)
GOG’s Fallout 4 is often a different version than Fallout: London expects.
Use the Fallout 4 Downgrader (GOG-specific):
- Download the GOG Fallout 4 Downgrader from Nexus Mods or the FOLON Discord.
- Extract the tool into your
Fallout 4 root folder (where Fallout4.exe lives).
- Run the downgrader as Administrator.
- Select the GOG version and target 1.10.163 (the version FOLON requires).
- Let it finish – it will replace executables and BA2 files.
Verify: After downgrade, right-click Fallout4.exe → Properties → Details – version should be 1.10.163.0.