
Activision and Bethesda crack down on GenAI MW2 and Fallout projects
There is currently complete freedom when it comes to flavor coding for video games, including imitations and decompilations of existing games, and not all companies are on board with this. Activision and Betheda, both owned by Microsoft, recently took action against two different projects.
The first was called Fallout: New York. A clip shared by ChrisFirst on X showed an attempt to recreate the open-world shooter in the Big Apple in a form that would be playable in people’s browsers. It was coded with Claude Opus 5.5 and certainly looked like Fallout at first glance.
“Quests. Dialogue trees. TVA A working Pip-Boy. Zero texture files. Zero sound files,” ChrisFirst wrote. “Every building, weapon, face and sound is generated by code.”
Obsidian is so finished. pic.twitter.com/8RXrDLFXgF
– Retro space RPG Space Wreck 🇱🇻🇺🇦 (@pahrislv) September 29, 2026
The project did not last long, however. The initial post, shared on September 28, has been viewed more than 3.5 million times. But a few days later, on October 1, ChrisFirst confirmed that it was abandoning the project after receiving an alleged cease and desist from Bethesda for violating its intellectual property. “Hey, Bethesda Studios, how about we create a To fall game instead so I don’t have to? he wrote alongside a screenshot of the legal threat. “Sorry to everyone who enjoyed the game! But the costumes got involved and the fun was over.
Hey, @BethesdaStudios, how about we make a Fallout game instead so I don’t have to?😂
Sorry to everyone who enjoyed the game! But the costumes get involved and the fun is over. https://t.co/knvSvxv7OH pic.twitter.com/11A7VaDp6x
– CHRIS FIRST (@chrisfirst) October 1, 2026
Follow the coded AI vibe Call of Duty The project also attracted attention from gaming advocates this week. Maurice Heumann shared on X on September 30 that he was using genAI to decompile the source code of the original Modern Warfare 2 on computer. “With currently 17 agents working in parallel, we are progressing at an incredible pace,” he wrote. “The game is now fully playable and almost all visible bugs are gone. There are only a few left. I even managed to obtain my first nuclear weapon.
The decompilation of MW2 is nearing completion.
With currently 17 agents working in parallel, we are progressing at an incredible pace.
The game is now fully playable and almost all visible bugs are gone. There are only a few left.
I even managed to get my first nuclear weapon ☢️😂 pic.twitter.com/vgfQdP93Gt
– Maurice Heumann (@momo5502) September 30, 2026
Activision responded by deleting the images it shared in the post. an apparent excerpt from Kill Streak was replaced with a warning: “This media has been disabled in response to a report from the copyright owner.” A link to the site supposed to host the code is no longer accessible either. Maurice Heumann’s other recent tweets complain that his AI agents are deleting all his data. “These assholes have done it again,” he posted this weekend.
It’s unclear how long this outlandish approach can last when mood-coded projects that appear to infringe on games’ famous intellectual property go viral every other day. Video game publishers have once again waged a legal battle against AI companies, as have some in Hollywood. “Going after the little guys instead of the tech is Napster and the music industry 2.0, we’ve already seen how this goes, we win, they lose,” one person wrote in response to the latest takedowns.
Gn tech