Capcom aims REX engine's AI at code, QA and tooling to curb AAA costs
Summary
Capcom's REX project rewrites RE Engine's codebase into a more common programming language.
That shift lets AI generate code and run automated test plays to catch bugs.
REX targets programming, QA and tooling costs across an engine built since 2014.
More than 2,000 Capcom developers currently use RE Engine, according to Eurogamer.
Capcom bars AI-generated art, sound or narrative content from games built on the engine.
01
REX rewrites RE Engine's codebase to make AI-native development possible
REX converts RE Engine's codebase into a more common programming language than its original build.
That conversion lets AI automatically generate programs and run test plays to catch bugs.
Ishida framed REX as an answer to ballooning complexity in AAA production timelines.
"Successfully integrating AI technology into development workflows"
02
Capcom names REX's six subsystems and dates the engine's decade-long build
Capcom named six REX subsystems: RE:Dox, RE:UI, RE:Log, RE:Flows, RE:Runtime and RE:C++.
RE:Dox standardizes data processing, RE:UI accelerates toolkit development, RE:Log adds ID-based logging.
RE:Flows handles visual scripting, RE:Runtime reworks the runtime core, RE:C++ refines execution.
Capcom began building RE Engine in 2014, three years before Resident Evil 7's 2017 launch.
REX also targets usability improvements for new and international staff joining Capcom's teams.
03
Scale across roughly 30 titles anchors the cost case for in-house tooling
RE Engine has powered nearly 30 Capcom titles since its 2017 debut.
More than 2,000 developers now build on the engine, per Eurogamer's estimate.
Capcom's in-house tooling model is widely credited for its recent run of hits.
Onimusha: Way of the Sword sold 1 million copies at launch, backing franchise revivals.
04
Capcom separates workflow AI from creative-asset generation to protect its IP
Capcom's VP of game development platform and AI solutions, Shinichi Inoue, frames the policy.
"Not for creating art, but for unleashing the potential of creators"
Capcom reiterated at a shareholder Q&A it will not use AI-generated content in games.
That confines AI testing to programming, graphics, sound and QA departments only.
05
Proprietary tooling diverges from Epic's licensed model while DLSS 5 tests the asset line
Capcom plans to publish select RE Engine technologies publicly for AI training use.
That extends Capcom's proprietary-engine strategy into AI tooling, unlike licensed alternatives.
Epic Games instead embeds third-party models Claude and Gemini into Unreal Engine.
Resident Evil Requiem appeared in Nvidia's DLSS 5 demo, criticized for AI-enhanced character models.
The criticism named protagonist Grace Ashcroft, testing Capcom's line against AI-generated content.
What this means
For Service Vendors: Pitch AI-native QA automation to engine-owning publishers ahead of their codebase rewrites.
For Investors & VC: Add engine-codebase AI-readiness to diligence for studios running proprietary tech.
For Publishers & Developers: Shift QA and tools-programming hiring toward AI-pipeline engineers over manual testers.
Events
Companies
Games
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Locations
Japan
SYNTHESIZED FROM:
- Capcom details plans to evolve RE Engine into an ‘AI game engine’ | VGC
- Capcom Plans to Turn The RE Engine Into an 'AI-Generation Game Engine' - Insider Gaming
- Capcom is preparing for a ‘future where we create games together with AI’ | The Verge
- Capcom Plans To Use AI To Speed Up The Game Development Process
- Capcom aims to enhance its propriety RE Engine with AI to accelerate efficiency in QA, debugging, and data processing | GamesIndustry.biz
- Capcom will use AI to speed up game development
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