Modders are mashing games together, and Claude writes code for some of them

Spider-Man can now swing through Gotham

luki-1’s ArkWeb mod runs Spider-Man Remastered and Batman: Arkham Knight at the same time. Claude Opus 5.5 is co-author on 4 of the project’s 6 commits, and the README even has a “Set it up with Claude” section.

Skateboarding in Modern Warfare 2

chasm added Skate 3-style skateboarding to 2009’s Call of Duty: Modern Warfare 2. Claude is listed as co-author on 91 of the project’s 151 commits. The post has 7.5 million views.

Minecraft’s Steve takes on a five-star police chase in GTA 5

Rehan Sheikh brought Minecraft into GTA 5. The project notes list Claude Code (Opus 5.5) as the agent and “about two days of agent sessions,” and Sheikh said it “was a few prompts with claude.”

CoD Zombies meets Fortnite

According to P.E. Cooper, Opus 5.5 and Astra pulled the source code for Call of Duty: World at War and ported the classic Zombies map to the web. The browser version now has Fortnite-style building too.

The most viral one: Minecraft inside Elden Ring

Tobyn Jacobs’ September 29 post has 23.5 million views. But Jacobs hasn’t said AI was used and hasn’t released the mod, only that it runs on Mac. Jacobs earlier shared a clip of Claude adding creepers to Dark Souls.

Mario takes on Margit in Elden Ring

Deltaroo’s mod brings Super Mario 64 into Elden Ring and has over 6 million views. But none of the project’s 179 commits shows any sign of AI; not every mashup is AI-made.

Spider-Man in Skyrim this time

Cydonyx mixed Skyrim with Escape from Tarkov and Spider-Man; the post has 2.7 million views. The creator hasn’t said AI was used.

Sora brings Kingdom Hearts powers to Borderlands

@tvllerr is working on a project that brings Kingdom Hearts’ Sora into Borderlands and says it is “in the very early stages.” There is no word on whether AI was used.