Home News The Witcher 4 is in production hell because of the Unreal Engine

The Witcher 4 is in production hell because of the Unreal Engine

by Ethan Mar 04,2025

The Witcher 4 is in production hell because of the Unreal Engine

Daniel Vavra, creator of the Kingdom Come trilogy and Warhorse Studio co-founder, criticizes Unreal Engine's limitations for complex, open-world games. He claims its inability to efficiently handle intricate environments, specifically vegetation, is the root of The Witcher 4's reported development struggles.

"Unreal excels in simpler landscapes, like deserts and rocky terrains," Vavra stated, "but its handling of trees has been problematic for a considerable time." He highlights the shortcomings of Nanite technology in rendering realistic vegetation.

Vavra, citing conversations with a CD Projekt employee, alleges that scenes easily rendered in RED Engine are proving extremely challenging in Unreal Engine, leading to significant production delays.

He points out that most open-world developers utilize proprietary engines, questioning CD Projekt's decision to switch to Unreal, given the capabilities of their existing RED Engine. While acknowledging Unreal Engine's visual prowess, Vavra notes its high system requirements, making it inaccessible to many players.

Despite being released several years ago, the first Kingdom Come: Deliverance continues to attract players. Its sequel, launching February 4th, promises enhanced visuals, refined combat, and a historically-grounded narrative continuing Indřich's story.

This article summarizes the latest information regarding the upcoming release, including system requirements and estimated playtime. We will also provide download instructions upon its release, ensuring you're among the first to experience the medieval setting.

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