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'The Witcher 4' Development Struggles Due to Unreal Engine Integration

By SarahFeb 20,2025

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, particularly vegetation, is the source of The Witcher 4's reported development struggles.

"Unreal excels in desert and rock landscapes, but struggled with trees for a considerable time," Vavra stated, highlighting Nanite technology's shortcomings in rendering realistic vegetation. A CD Projekt employee reportedly confirmed to Vavra that scenes easily managed by RED Engine presented significant challenges in Unreal Engine, leading to extensive production difficulties.

Vavra points out that most open-world games utilize proprietary engines, questioning CD Projekt's decision to switch to Unreal given their established and effective RED Engine. While acknowledging Unreal Engine's visual capabilities, he notes the high-end hardware requirements, pricing several thousand euros, making it inaccessible to many players.

Despite its release years ago, Kingdom Come: Deliverance maintains significant player interest. Its highly anticipated sequel, launching February 4th, will continue Indřich's story with improved graphics, refined combat, and a historically-grounded narrative.

This article summarizes the latest information on the upcoming release, including system requirements and estimated playtime. We will also provide download instructions upon Kingdom Come: Deliverance 2's release, ensuring you're among the first to experience its medieval setting.

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