Capcom shares plans to gradually transform its RE Engine into REX to “create games together with AI”
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Capcom has revealed plans to make artificial intelligence a bigger part of its game development technology. The company wants to gradually transform its RE Engine, which powers many of its modern games, into what is described as an AI-generation game engine, or rather, the company wants to “create games together with AI”.
The plans were discussed during Capcom Open Conference RE: 2026, where programmer Satoshi Ishida presented the company’s vision for the future of the engine. Rather than replacing RE Engine with something completely new, Capcom is developing an initiative called REX, which will introduce improvements over time to make game development faster and easier.
Using AI in tandem with the RE Engine
Capcom believes this is becoming necessary because modern games are getting much larger and more complicated to make. Even relatively simple development processes can now take significant amounts of time, while more than 2,000 people use RE Engine across the company. This creates another challenge, as Capcom needs development tools that can be easily understood and used by a large workforce.
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AI is expected to become part of the solution. Capcom wants REX to make its technology easier for both developers and AI systems to understand, eventually allowing the two to work together during development. In the Japanese article, a Google translation labels the upgrade an “AI-generation game engine,” though users are quick to point out it’s more accurate to translate it as a game engine for the AI era.
The article also notes that Capcom wants to “create games together with AI,” rather than making RE Engine totally AI-driven. We understand gamers shouldn’t think future Resident Evil or Street Fighter games will be filled with AI-generated artwork and other assets. The company previously stated that it does not plan to put AI-generated assets into its games.
Instead, Capcom sees AI as a technology that can improve productivity in areas such as programming, graphics, sound, testing, and other development processes. The company’s broader goal appears to be reducing the amount of time developers spend on repetitive or technically demanding work while giving them tools that make increasingly complex games easier to build.
What does REX include so far?
REX consists of several projects designed to improve different parts of the development process. For example, RE:Dox is focused on handling different types of data under a common set of rules, while RE:UI aims to improve and optimize the tools developers use when working with RE Engine.
Other parts of the project could have a more direct impact on how games are created. RE:Runtime is intended to improve how the engine handles large numbers of objects and characters, while RE:Flows is designed to make implementing gameplay ideas easier by converting them into a standardized programming format.
The long-term goal goes further than simply adding a few AI-assisted tools. Capcom wants its development systems to use commonly understood programming standards that are easier for AI to read and work with. This could eventually allow AI to generate programs for certain tasks or perform playtests to identify bugs during development. Some of Capcom’s technology is also being made open source, including RE:Dox and RE:Log, with AI training being one of the reasons behind the move.
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