REX: Capcom Is Preparing the Evolution of the RE Engine with Artificial Intelligence

Capcom now has a roadmap for the future of its technology. During the Capcom Open Conference RE: 2026, held on October 2, programmer Satoshi Ishida presented REX, a multi-stage project through which the company aims to gradually evolve the RE Engine. The long-term goal is ambitious: turning it into a game engine built on AI generation. The original reporting comes from Gamereactor España, which in turn draws on IGN's coverage of a report by Japanese outlet GameBiz.

Why does it matter? Because the RE Engine is the backbone of much of Capcom's modern catalog, including franchises with a strong competitive presence such as Street Fighter. Any change in how those games are built eventually shows up in what reaches our hands: performance, update cadence and patch quality. And, for now, Capcom insists that AI is coming in through the door of internal efficiency, not mass content production.

What You Need to Know

• REX is a phased project to evolve the RE Engine into an AI-generation engine over the long term.
• The current focus is using AI to speed up and optimize development processes, not to mass-generate assets.
• It was presented at the Capcom Open Conference RE: 2026 on October 2 by programmer Satoshi Ishida.
• Capcom identifies three challenges: ever-larger games, bigger teams and the growing importance of AI for efficiency.
• REX aims to improve efficiency, performance, tooling and quality assurance.

Three Problems Capcom Wants to Solve

According to Ishida's presentation, the starting point is very down to earth. The first problem is scale: games have grown so large that tasks that should be simple end up taking far too much time. The second is about people: the bigger the teams, the more they need easy-to-use tools that don't force every developer to master every technical corner of the engine. The third is the one grabbing the headlines: AI integration is becoming key to keeping development efficient.

With that diagnosis in hand, REX is framed as an upgrade on four fronts: development efficiency, performance, tooling and quality assurance. In other words, rather than a brand-new engine appearing out of nowhere, it's an evolution of the existing foundation, designed to help Capcom's internal studios work faster and with less friction.

What REX Isn't (For Now)

It's worth stressing: the approach described doesn't involve filling games with automatically generated characters, environments or textures. The idea of an AI-generation engine remains a distant horizon, and Capcom hasn't given any timeline for that phase. For now, we're talking about tools that help developers, not something that replaces them.

Our Take

Here at Underworld Lordz, we view REX with equal parts interest and caution. If AI helps QA catch bugs earlier, lets teams iterate faster and improves performance, we competitive players come out ahead. In a fighting game, or any title with a competitive scene, a bug that makes it to release can ruin a tournament, and a patch that takes weeks can leave a broken meta in place for far too long. More agile tools could translate into faster balance cycles and more polished launches.

But there's one line we can't ignore: the long-term goal is an AI-generation engine. That raises uncomfortable questions about the role of artists, designers and testers, and about the visual identity that has always set Capcom apart. There are nuances for content creators too: if part of a game's material is generated automatically in the future, we'll need to see how that squares with authorship, originality and the community's trust. Capcom taking a gradual approach seems sensible to us; explaining it transparently at every stage should be non-negotiable.

Our position is clear: AI that takes repetitive work off people's plates and improves performance is welcome. AI as an excuse to cut talent or pad games with soulless content is not. Capcom now has the chance to prove it can innovate without losing what made it great.

What Do You Think?

Artificial intelligence is already making its way into the engines of the big studios, and Capcom has just made it clear where it wants to go. It could mean more stable games and faster patches, or it could change the way video games are made forever. Do you trust REX to improve the games you play competitively, or are you worried AI will end up replacing creative work? Let us know in the team chat or on our Discord.