Capcom wants to build games 'together with AI,' but it's not what you think

What happened

On October 2, 2026, Capcom held its Open Conference RE: 2026, where programmer Satoshi Ishida presented the next phase of the company's proprietary RE Engine under a project called REX. The stated goal, as Ishida put it, is "a future where we create games together with AI."

REX is a multi-step initiative—reportedly comprising six programs—that will gradually transform RE Engine into what Capcom calls an "AI-generation game engine." The phrase sounds provocative, but multiple outlets stress an important distinction: Capcom appears to mean an engine for the AI generation, not necessarily a generative AI engine. As PC Gamer noted, Capcom's plans are "more nuanced and detailed than slapping ChatGPT into its game development workflows."

Ishida identified three core challenges motivating REX, as reported by GameBiz via IGN: first, games have grown so massive that even simple processes have become extremely time-consuming; second, larger development teams require an engine that's easy for everyone to use; and third, integrating AI technology into development workflows has become "an essential condition for streamlining future development."

VGC reports that REX targets improvements across performance, tools, development efficiency, and QA. A notable technical detail: REX will adopt a more common programming language, which Ishida said will make development easier for AI to understand and allow it to automatically create code and assets.

Crucially, Engadget notes that Capcom previously stated it will not use AI-generated content in its games—a prior commitment that reinforces the distinction between AI-assisted development tooling and generative content appearing in finished titles.

The RE Engine has powered Capcom's modern titles since its debut with Resident Evil 7 in 2017, with nearly 30 games released on the engine. It is widely credited as a factor in Capcom's recent streak of critically and commercially successful releases, including this year's Resident Evil: Requiem, Pragmata, and Onimusha: Way of the Sword.

Why it matters

Capcom is one of the few major publishers currently enjoying a sustained run of hits, which gives its technology decisions outsized influence. If REX successfully demonstrates that AI-assisted tooling can meaningfully reduce AAA development cycle times—without crossing into generative content that could alienate players or developers—it may become a reference model for the broader industry.

The framing also matters for public perception. AI in game development remains controversial, particularly among players wary of generative content and developers concerned about job displacement. Capcom's "together with AI" positioning, combined with its prior stance against AI-generated content in finished games, is a deliberate messaging strategy that other companies may study.

The programming language shift is a concrete technical signal. By moving to a more common language that AI tools can more easily parse, Capcom is building infrastructure that could enable automated code generation, asset creation, and QA workflows—capabilities that go beyond simple plugin-style AI integrations.

What to watch

• Concrete REX program details: The six programs within REX have not been fully detailed publicly. Watch for future Capcom conference disclosures or technical talks that reveal specific AI-assisted tooling capabilities.
• Capcom's next fiscal disclosures: Whether REX tooling measurably reduces development costs or cycle times will be a key signal for investors and the industry.
• Capcom's stance on generative content: The company has said it won't use AI-generated content in its games, but as REX matures, the boundary between AI-assisted creation and AI-generated content may blur. Watch for any evolution in Capcom's public commitments.
• Industry response: If Capcom's approach proves effective, expect other publishers with proprietary engines to announce similar AI-assisted development initiatives.