Tim Sweeney: ThreeJS is 10x faster for prototyping than Unreal; Epic aims to close the gap
majidmanzarpour · x · 2026-10-27
Epic Games CEO Tim Sweeney says Unreal Engine is currently 5x faster for prototyping versus traditional approaches, while ThreeJS is 10x faster — and Epic is working to reverse the gap by year end. Developer majidmanzarpour echoed this: "no editor, no build step, just code & a browser tab."
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