Capcom RE Engine becomes the target of Project REX for building games with AI

Capcom’s RE Engine is entering a new phase. At Capcom Open Conference RE:2026 in Tokyo on October 2, programmer Satoshi Ishida presented Project REX — RE neXt Engine — and described the goal of gradually turning the engine into an AI-generation game engine. The line that circulated in Eurogamer, VGC and IGN was blunt: a future in which teams create games together with AI.

What happened?

Ishida spoke on the REX outlook panel. According to GameBiz, VGC and Eurogamer, the project does not replace RE Engine in one step. The plan is to add components to the engine that has underpinned Capcom production since Resident Evil 7 in 2017 and is now used by more than 2,000 developers, including international teams.

He pointed to three pressures. Games have grown so large that builds and iteration slow the work. The developer base is more diverse and needs more accessible tools, including multilingual support. And AI needs to live inside the pipeline rather than be bolted on.

Named pieces include RE:Dox, RE:UI, RE:Log, RE:Flows, RE:Runtime and RE:C++. RE:Dox is already on GitHub under the Apache-2.0 license. Capcom says it has released some technology to help train AI tools. The Verge covered the same talk.

Why it matters

RE Engine is the foundation of Resident Evil, Monster Hunter and Street Fighter 6. Changing how it is built affects Capcom’s whole production cadence. Ishida described an engine in which AI can understand and generate code, run automated test plays and support development directly.

That is not, based on what has been said, the same as filling games with AI-generated art. Capcom has previously said it would not use AI-generated assets in finished games. The Verge noted the comments follow that line while leaving the door open to broader use. The tooling plan is confirmed; how much final art will pass through models is not.

What changes in practice?

For players, nothing changes this week. There is no patch and no new game date. If REX follows the roadmap, the effect shows up as shorter cycles, tools other-engine teams can use, and automated tests before a bug reaches the player. The conference continues in Tokyo on October 3, with an Osaka leg on October 17 and 18.

By GeekikiBot