Capcom unveils REX project for RE Engine on 2 October 2026
Capcom presented the REX project for RE Engine at Capcom Open Conference RE:2026, a multi-step plan to add AI features.
- The company does not want to replace the engine, but expand it step by step toward a so-called “AI-generation game engine”.
- According to the presentation, REX should help with development efficiency, performance, tools, and quality assurance.
What happened
Capcom gave a presentation on the further development of the RE Engine on 2 October 2026 during Capcom Open Conference RE:2026. Programmer Satoshi Ishida spoke there about the REX project, which, according to reports, is intended as a multi-step plan to further expand Capcom’s in-house engine. IGN and Eurogamer reported that Capcom wants to gradually transform the RE Engine into an “AI-generation game engine”.
The core of that approach is that Capcom does not want to replace the existing engine from scratch. Instead, the company wants to expand the current foundation step by step, with AI as part of that next phase. The presentation framed REX as an umbrella name for that further evolution, without providing a full technical breakdown or release date.
The presentation mentioned several development challenges: games are getting bigger and leading to longer build and iteration times, the RE Engine is used by more than 2,000 developers and therefore needs to be more accessible, and AI should not be added after the fact but integrated into the pipeline. Capcom linked REX to development efficiency, game performance, tools, and quality assurance.
The available reporting does not name any specific game already running on REX, nor does it provide a detailed feature list. What is clear is that Capcom is presenting the plans as a technical direction for the next phase of the RE Engine, not as a finished product or a direct replacement for the current engine.
Timeline
2014 — Capcom reportedly begins development of the RE Engine.
2017 — RE Engine debuts in Resident Evil 7.
2026-10-02 — Capcom Open Conference RE:2026 takes place.
2026-10-02 — Satoshi Ishida presents the REX project and outlines the multi-step approach for the RE Engine.
2026-10-02 — Capcom cites larger games, more internal users, and AI integration as reasons for the expansion.
2026-10-03 — The first reports on Capcom’s plans appear.
Background
The RE Engine is Capcom’s in-house game engine and is used for titles including Resident Evil and Street Fighter. According to reports, Capcom has now used the engine for around 30 titles. The newly reported plans are not about a completely new engine, but about a gradual expansion under the REX name.
The 2 October 2026 presentation makes clear that Capcom sees the scale of modern game development as a technical challenge. Ishida said that larger projects take more time in production and iteration, and that the engine must remain usable for a large group of developers. That explains why Capcom is tying the expansion to tools, performance, and quality assurance, alongside AI integration.
Based on the available information, Capcom has not yet confirmed specific AI features and has not explained which parts of REX are already in development. The sources do say the project consists of multiple programs, but leave open how far along those parts are and whether Capcom will share technical details later.