Bethesda Engine Is Getting Its Largest Ever Upgrade Before Starfield and The Elder Scrolls 6

Todd Howard's explained that Bethesda's Creation Engine is getting its biggest ever rework before Starfield and The Elder Scrolls 6, with five times more people working on it than ever before.
We have more people doing engine work now, by a factor of five.

Bethesda does 'largest engine overhaul in history' for Elder Scrolls 6

Creation Engine - Wikipedia

If Bethesda truly intends to continue to use the outdated Creation Engine in their upcoming titles (Elder Scrolls VI and Starfield), are they doomed to fail? - Quora

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Bethesda Engine Is Getting Its Largest Ever Upgrade Before Starfield and The Elder Scrolls 6

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Bethesda Engine Is Getting Its Largest Ever Upgrade Before Starfield and The Elder Scrolls 6 - IGN