Epic Games used Unreal Fest 26 in Tokyo to detail a sweeping overhaul of Unreal Engine's internal architecture, retiring long-standing development tools in favor of a unified system built around Verse and a new component-based data model. The company says an Early Access preview of Unreal Engine 6 is planned for 2027, with the final release timeline left open.
What's actually being removed
According to presentation materials, Epic plans to phase out three pillars of Unreal Engine development: the Actors object model, the node-based Blueprints visual scripting system, and the traditional C++ Gameplay Framework. These tools have defined how developers build game logic since early Unreal Engine versions. Epic frames their removal as necessary to merge conventional engine development with the workflow used in Unreal Editor for Fortnite, creating one consistent toolset instead of two parallel systems.
The new technical foundation
In place of the retired systems, Unreal Engine 6 will rely on an Entities & Components data architecture paired with Verse, Epic's proprietary programming language, and a set of Verse Gameplay APIs built specifically for game logic. Epic also plans to build native support for the Model Context Protocol and Python directly into the engine core. That combination is intended to let external automation tools and AI-based assistants interact more directly with the process of building game worlds, rather than working through add-on plugins.
Epic's stated goal is to standardize how code is written across projects and reduce the performance bottlenecks that can arise from large, complex visual scripting graphs in Blueprints-an issue many studios have reported as projects scale in size and complexity.
Migration path and open questions
Because the change affects core systems used in virtually every existing Unreal Engine project, Epic is developing an upgrade strategy centered on AI-assisted automated migration. The idea is that neural network-based tools would convert existing Actors, Blueprints, and C++ logic into Entities-based structures and Verse code without requiring studios to rebuild projects manually. Epic has not detailed how accurate or complete that automated conversion will be in practice, and the company has not published a fixed date for Unreal Engine 6's final stable release, saying instead that timing depends on how quickly developers adopt the new systems.
For studios currently shipping titles on Unreal Engine 5, the announcement signals a multi-year transition window rather than an immediate shift, giving teams time to evaluate how the new architecture affects existing codebases before committing to the migration.