If you’ve even idly checked in on the robust world of Doom fan development in recent years, you’ve probably encountered one of the hundreds of gameplay mods, WAD files, or entire commercial games based on GZDoom. The open source Doom port—which can trace its lineage back to the original launch of ZDoom back in 1998—adds modern graphics rendering, quality-of-life additions, and incredibly deep modding features to the original Doom source code that John Carmack released in 1997.
Now, though, the community behind GZDoom is publicly fracturing, with a large contingent of developers uniting behind a new fork called UZDoom. The move is in apparent protest of the leadership of GZDoom creator and maintainer Cristoph Oelckers (aka Graf Zahl), who recently admitted to inserting untested AI-generated code into the GZDoom codebase.
“Due to some disagreements—some recent; some tolerated for close to 2 decades—with how collaboration should work, we’ve decided that the best course of action was to fork the project,” developer Nash Muhandes wrote on the DoomWorld forums Wednesday. “I don’t want to see the GZDoom legacy die, as do most all of us, hence why I think the best thing to do is to continue development through a fork, while introducing a different development model that highly favors transparent collaboration between multiple people.”