User Summary The fourth installment of The Witcher, orignally based on a Polish book including many Slavic folklore creatures and stories, as well as elements of the Fantasy world. The game will be running in Unreal Engine 5, but not much else is published about the upcoming game as of March 21st 2022: This is an exciting moment as we’re moving from REDengine to Unreal Engine 5, beginning a multi-year strategic partnership with Epic Games. It covers not only licensing, but technical development of Unreal Engine 5, as well as potential future versions of Unreal Engine, where relevant. We’ll closely collaborate with Epic Games’ developers with the primary goal being to help tailor the engine for open-world experiences. At this point, no further details regarding the game — such as a development time frame or release date — are available. Source: The Developer Website.