AIBRIEF
Satoshi Ishida outlined the REX Project — a new AI development phase of Capcom's in house RE Engine technology, which powers Resident Evil — with auto generated code and AI driven test plays as targets.
Capcom is making a split public: AI inside the development engine, none of it in shipped assets. The mechanism, named for the first time at the company's internal tech conference, is a codebase AI can read alongside humans.
At its October 2 Capcom Open Conference RE: 2026, programmer Satoshi Ishida laid out the REX Project, the next-phase evolution of the RE Engine that has powered Resident Evil since 2017. Ishida named three production problems: games are so large that simple tasks are time-consuming, headcount has grown so the engine must be usable by everyone, and integrating AI is now "an essential condition" for streamlining development.
The proposed fix is architectural: unify the engine under the "world's most common programming language" so both human developers and AI tools can reason about the same code. Named capability targets include automatically generating programs and AI-driven test plays to catch bugs. Capcom also said it will release some REX components publicly for AI training.
The line Capcom says it will not cross is the games themselves. At its March 2026 shareholders meeting, Capcom stated: "We will not implement assets generated by AI into our games," while planning to "proactively use [AI] as a contributing technology to improve the efficiency and productivity of the game development process," according to GameBiz.
Open questions: which REX components Capcom releases for external AI training, on what license, and whether the no-AI-assets policy holds as the engine itself becomes more AI-native.