DATE: FRIDAY, SEPTEMBER 18, 2026
★ SPECIAL PRINT EDITION ★
SECTION: GAMING
CD Projekt Red Ditches In-House Tech for Unreal Engine 5 in The Witcher 4

CD Projekt Red Ditches In-House Tech for Unreal Engine 5 in The Witcher 4

Sep 18, 2026 - 21:12
The Witcher 4 abandons CD Projekt Red's in-house tech for Unreal Engine 5, but studio lead says it's not because of issues with Cyberpunk 2077
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Key Highlights

  • CD Projekt Red will use Unreal Engine 5 for The Witcher 4.
  • The decision was not made due to issues with Cyberpunk 2077.
  • The company is collaborating with Epic on the engine.

CD Projekt Red, the developer behind the hit RPG series, has announced that it will be switching from its in-house engine, REDEngine, to Unreal Engine 5 for its upcoming title, The Witcher 4. This decision was not driven by problems with their previous game, Cyberpunk 2077.

According to joint CEO Michał Nowakowski, the assumption that the switch was due to issues with Cyberpunk is a misconception. Instead, he explains that the company's goal has always been to create visually and technically cutting-edge games, rather than focusing on developing technology itself.

The internal logic behind the decision was that CD Projekt Red makes games, and the REDEngine was a byproduct of doing so.

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Anthony McGlynn

Anthony McGlynn

The incentive to switch came from the demonstration of Unreal Engine 5, which showed promise but required further development. Nowakowski and his leadership team recognized that the technology had potential and decided to collaborate with Epic on the engine.

By forming a relationship with Unreal and working together on specific technical requirements. CD Projekt Red believes it can make the engine work for their games. This strategic collaboration has led to their involvement in forging the engine from the inside.

The company's unique position allows them to contribute to the engine's development while also utilizing its capabilities for The Witcher 4 and the remastered release of The Witcher 3.

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Portal 2

Portal 2

CD Projekt Red is one of a few developers working closely with Epic on the engine. Giving them access to the inner workings of the 'black box' that is Unreal Engine 5. This collaborative approach enables them to tailor the engine to their specific needs.

The lead writer for The Witcher 3 expansion notes that adding new content is not a significant undertaking. And CD Projekt Red's efforts will focus on enhancing the overall gaming experience.

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I write about the forces shaping business and the global economy, from startup growth and changing markets to international trade and policy. My work focuses on breaking down complex developments into clear, practical insights and understanding what they could mean for businesses, investors, and the wider economy.

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