Ship of Harkinian devs confirm AI use, push back on 'vibecoded slop' claims

Harbour Masters, the team behind the popular Ocarina of Time PC port Ship of Harkinian, is at the center of a community blowup after evidence emerged that members have been using AI tools — including Anthropic's Claude — to write and modify code across multiple ports of classic Nintendo games.

The controversy kicked off in earnest on September 16 when a PC Gaming Wiki post by a user called "Slopiskillingretrogaming" went viral on ResetEra and Bluesky. The post alleged that thousands of lines of code across Harbour Masters' projects, including their core runtime library libultraship, were AI-generated, and that the team had quietly removed co-author credits to obscure Claude's involvement. Linked commits do directly reference Claude Fable 5 as a co-author. The post also claimed some image assets were AI-generated, and argued the ports no longer meet PC Gaming Wiki's standards. Harbour Masters confirmed that some team members do use AI tools, but pushed back hard on the framing — insisting every line of code is reviewed by experienced humans and that nothing is blindly shipped.

Ship of Harkinian is one of the most prominent reverse-engineered PC ports in the retro gaming scene, built from a decompilation of Ocarina of Time's original N64 code. Harbour Masters has expanded beyond that single port, and libultraship serves as a shared foundation across their projects. The backlash taps into a broader anxiety in open-source and fan-development communities about AI eroding the craft and transparency that make volunteer-driven projects trustworthy in the first place — especially when those projects exist in a legal grey area that depends heavily on community goodwill.

Fans flooded the team's official Discord with questions and frustration after the story spread, and Harbour Masters appeared caught off-guard by the scale of the reaction. The debate is ongoing, with no sign the community anger is cooling quickly.