by CD Projekt Red has announced a high-profile tech partnership with Epic Games to use Unreal Engine 5 for The Witcher 4, but that doesn’t mean the Polish studio will soon be ditching its own REDengine.
The REDengine, which is CD Projekt Red’s proprietary game development software, will continue to be used to develop Cyberpunk 2077’s next expansion, the studio said in a press release. CD Projekt Red has been using this engine since The Witcher 2: Assassins of Kings in 2011.