Unreal Engine 5.9 Was Built Mainly By AI Agents, And Puts Them In The Editor
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Unreal Engine 5.9 Was Built Mainly By AI Agents, And Puts Them In The Editor
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Epic's Unreal Engine 5.9 preview was built mainly by AI agents and adds an in-editor assistant and a browser runtime.
- 01. Built mainly by AI agents; in-editor assistant for Claude Code, Codex, Cursor, OpenCode
- 02. Unreal MCP toolsets, Unreal Canvas, browser runtime; experimental; MegaJam Nov 12-15
Epic has released the Unreal Engine 5.9 MegaJam Preview, the first Unreal release built mainly with AI agents, directed by a small team while engineers reviewed and tested the work. It adds an experimental assistant panel inside the editor that works with Claude Code, Codex, Cursor or OpenCode through Unreal MCP, with toolsets for building levels, testing gameplay, profiling and pulling assets from Fab. Unreal Canvas generates concept art, 3D meshes and video with models you connect, and projects can now run in a web browser. It's all experimental and labelled unstable, timed for Epic's AI MegaJam on November 12 to 15. The full 5.9 release is due next year.
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