"Witcher 4 Production Struggles with Unreal Engine"

Author: Thomas Jun 14,2025

"Witcher 4 Production Struggles with Unreal Engine"

In a recent and rather pointed critique, Daniel Vavra—creator of the *Kingdom Come* trilogy and co-founder of Warhorse Studios—expressed strong reservations about Unreal Engine, particularly regarding its ability to manage complex open-world environments. Known for his work on meticulously detailed historical settings, Vavra argues that Unreal simply isn't up to the task when it comes to rendering intricate natural landscapes, especially when it comes to vegetation.

"Unreal works well here if you want to make a game with desert and rocks, but the engine couldn't handle trees for a long time," Vavra stated bluntly. He added that even the much-hyped Nanite technology falls short in realistically rendering large-scale foliage.

According to reports, Vavra discussed this issue with a CD Projekt employee who confirmed that scenes which previously ran smoothly on The Witcher’s proprietary RED Engine are now causing performance bottlenecks under Unreal. This technical instability is believed to be contributing to the production delays and internal challenges surrounding *The Witcher 4*.

Vavra also noted that many studios developing expansive open-world titles tend to rely on custom-built engines tailored to their specific needs. He expressed confusion over CD Projekt’s decision to abandon the capable RED Engine in favor of Unreal, despite the former's proven track record.

While Unreal Engine can indeed produce stunning visuals, Vavra points out that doing so often requires high-end hardware—systems costing several thousand euros—that remain out of reach for the average gamer. This raises concerns about accessibility and optimization, especially for large-scale RPGs aiming for both fidelity and performance.

Kingdom Come: Deliverance 2 – What to Expect

The original *Kingdom Come: Deliverance* launched several years ago, yet interest in its immersive medieval Bohemian setting has remained consistently strong. Fans have eagerly awaited the sequel, which promises enhanced graphics, a more refined combat system, and a deeply layered narrative rooted in real historical events.

[ttpp]

Set to release on February 4, *Kingdom Come: Deliverance 2* will continue the story of Indřich, offering players an even richer and more dynamic world to explore. In this article, we’ve compiled all the latest updates regarding the upcoming title, including official system requirements and estimated playtime for a full campaign completion.

Additionally, as soon as *Kingdom Come: Deliverance 2* becomes available, we’ll provide clear instructions on how to download and install the game, ensuring you’re among the first to step back into the gritty, historically grounded world of medieval Bohemia.