I haven’t installed it or tried it out myself but it is being hosted here on GOG which is neat. Here is an article a bit about why GOG is hosting it.

The Steam version apparently requires the use of this downgrader mod from the Nexus.

You will need the GOTY edition with all the DLC either way.

If you want to see how the mod is several people are already streaming it.

Here is some information from the GOG page:


Summary

Fallout: London lets you explore a dishevelled London set in the Fallout universe. It overhauls Fallout 4 with a new story, new weapons, London-centric items and a vast recreation of the ruined city to explore.

Fallout: London is a free total conversion mod for Fallout 4, available to anyone who owns the base game and all of its DLCs. It is developed non-commercially by Team FOLON, many of whom are proud London residents or expats.

About This Game

There has never been a better time to sample the capital’s delights! Fallout: London lets you explore the wonders of the city 160 years after the bombs have dropped, and 40 years before the events of Fallout 3. You can now reimagine Fallout in a London-centric universe, interacting with a brave new world of London-based locations, stories, factions, creatures, weapons, and gameplay mechanics.

Features

Protect and Survive!

The Gentry-dominated London stands on a knife-edge, and you may be the key to which way the guillotine falls. Play a new story set in London with a fresh character beginning, numerous conflicting factions to engage with and multiple story paths and endings with up to 90 hours of gameplay. Just be aware of what terrible secrets you may uncover in the shadowy gaps amidst the halls of power.

  • 200 Quests to change London’s future
  • 20 Factions bickering for power
  • 7 Companions to bring along on your journey
  • 15 Boroughs crafted from the ground up, bringing you a new warped and broken London
  • Extended Dialogue System to bring player-choices to the table, carve your own story!
  • Overhauled Original Soundtrack to bring personality to each nook and cranny
  • Original Voice Acting from all major characters, gangs, and factions

Authentic London Flair!

Discover new weapons, creatures, clothing, items, collectables, architecture, foliage and NPCs to complete the London setting. Interact through the world with your custom Atta-boy, with a fresh interface based on the UK’s life-saving Protect and Survive nuclear information campaign.

  • Build back better with 7 unique settlements
  • New craftable items with a plethora of new weapons
  • Dynamic new animations to bring life

  • hydroptic@sopuli.xyz
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    4 months ago

    The big FO4 update a while ago completely borked my install on my Steam Deck (fucking thing won’t even start), so this might be a good time to just clear the slate to try London.

    • Corroded@leminal.spaceOP
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      4 months ago

      That made me wonder if someone will ever create a Lutris install script for Fallout London

  • Corroded@leminal.spaceOP
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    4 months ago

    I edited the post to link directly to the trailer rather than the install page. Thought it might be a good idea for those who haven’t heard of it.

  • Viking_Hippie@lemmy.world
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    4 months ago

    Of course this should happen just a couple days after I got sick of waiting for new stuff to play and bought Kingdoms of Amalur: The Re-Reckoning 😄

    Still pretty damn pumped for playing this after I finish Kingdoms, though! 🥳❤️

    • Corroded@leminal.spaceOP
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      4 months ago

      I don’t think so. From my understanding the Bethesda mod workshop has several limitations that would prevent things like using F4SE and ini file tweaks.

      If it were added to console I have to imagine it would be in cooperation with Bethesda and involve tweaking the mod. It’s still having stability issue too so all of this would likely be a ways out. It could set a neat precedent of Bethesda being open to fan projects kind of like Valve and Black Mesa.

    • Corroded@leminal.spaceOP
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      4 months ago

      You could just select a new install location for the game and keep that modded setup as well.

    • Apeman42@lemmy.world
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      4 months ago

      I just bought FO4 again on GOG and that made it a completely pain-free install of like 6 clicks, no downgrade needed, 0 issues except engine-inherent thing like the occasional CTD or dark face bug.

      I just considered it as paying the $15.99 for London, tbh.