Capcom Wants RE Engine Rebuilt For AI Under New REX Project

Capcom plans to evolve its RE Engine into what it calls an AI-generation game engine, The Verge reported. Programmer Satoshi Ishida laid out the plan on October 2 at the Capcom Open Conference RE: 2026.

The project is called REX. Ishida said the aim is a future where Capcom makes games together with AI, according to IGN's translation as relayed by The Verge.

What Capcom Presented

Ishida's talk covered the outlook for REX and how the RE Engine will develop for the next generation. He described the difficulty of building games at the scale of Resident Evil. Even simple jobs eat up a lot of time.

Capcom's answer is to work AI into its development workflows. The Verge reports the plan is for the RE Engine to change slowly and in stages, with nothing happening overnight.

AI Playtesting And Code Generation

Destructoid reported that Capcom singled out small corrections and movement checks as tasks that take too long by hand. Capcom's presentation, as translated by Gamebiz, called AI integration a prerequisite for streamlining future development.

The engine is being built on a unified base language. Capcom says that makes it easy for human developers to use and easy for AI to read.

Destructoid reported that the company expects AI to understand that language and write programs automatically. Capcom also expects AI to run test plays and check for bugs on its own in the future.

Capcom's Earlier Stance On AI Assets

The Verge noted that Capcom has previously said it will not put AI-generated assets in its games. Capcom's position then was that it would use the technology to make development more efficient.

Destructoid has not confirmed whether any specific Capcom title has used AI in its development. Its caption on a Resident Evil Requiem image says it is unknown if Resident Evil Veronica was worked on using AI.

Concerns From Destructoid

Destructoid writer Andrej Barovic was openly critical of the plan. He wrote that automated QA, with AI doing playtests in place of people, was the most disappointing part.

Barovic argued Capcom could end up spending more time checking and fixing AI mistakes, possibly after launch, than it would by relying on trained humans. That is his opinion. Capcom has not said it.

Barovic also pointed to the RE Engine's history. Capcom introduced the engine in 2017 and built a shared base for its development teams. That let them reuse photogrammetric textures, other assets and code across games.

Capcom has not announced which projects will use the REX changes.

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