The Witcher 4 — Unreal Engine 5 Tech Demo

The Witcher

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**The Witcher 4 – Unreal Engine 5 Tech Demo: A First Look at the Next Generation of Open World**

At the recent *State of Unreal* presentation during Unreal Fest in Orlando, CD PROJEKT RED and Epic Games showcased an impressive preview of the next stage in the Witcher saga: the technical demo of *The Witcher 4*, based on Unreal Engine 5. This video reveals not only graphical milestones but also groundbreaking technologies that elevate the gameplay experience on a PlayStation 5 to a new level with smooth 60 FPS and ray tracing.

### The World of The Witcher 4 Shines Anew

The demo takes place in the region of Kovir, a vibrant, densely forested area full of natural beauty and lifelike details. Players assume the role of Ciri, the professional monster hunter and witch, who is on the hunt for clues for a new mission. A central highlight is the interplay between Ciri and her faithful horse Kelpie. Thanks to the new *Multi-Character Motion Matching* technology in Unreal Engine 5, the movements of both appear more harmonious and fluid than ever before. No matter the angle or the speed at which the player mounts, the seamless synchrony delivers an immersive riding experience. Additional enhancements to the *Chaos Flesh Solver* with machine learning provide realistically animated muscles and skin without compromising performance.

### Nanite Foliage – Revolutionizing Vegetation Representation

A major focus of the demo is the depiction of Kovir’s lush vegetation. The developers demonstrate with *Nanite Foliage* how they have broken through traditional limitations. Instead of complex LOD (Level of Detail) maps, artists now work with a voluminous, voxel-based Nanite structure that richly details every single leaf and needle while remaining extremely performant. The vegetation dynamically responds to changing sunlight and shadows, which is especially important in an open world.

### A Living Game World Thanks to Smart AI and Dynamic Reactions

Particularly impressive is the high degree of interactivity in the marketplace of the harbor city Valdrest, which is visited in the demo. Here, NPCs react lifelike to Ciri’s actions: Gwint card game fights can escalate, merchants converse with realistic facial expressions and voice lines thanks to character technology, and the world feels genuinely interconnected in an organic way. The intertwining of story and environment seems to have been fundamentally rethought – every action can have consequences, enhancing immersion.

### Collaboration Between CD PROJEKT RED and Epic Games: A Technical Leap Forward

At the core of this tech demo is the close partnership between CD PROJEKT RED and Epic Games. Creating a massive yet detailed open world requires the fusion of art and technology, as made possible by Unreal Engine 5. Alongside Nanite and Motion Matching, a new, faster world-loading technique is also introduced, enabling seamless exploration of large areas without annoying loading times.

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**Conclusion:** The video for *The Witcher 4 — Unreal Engine 5 Tech Demo* offers a breathtaking glimpse into the potential of the next generation of Witcher games. With impressive graphics, groundbreaking animation technology, and a vibrant, interactive world based on Unreal Engine 5, CD PROJEKT RED appears ready to raise the bar for open-world RPGs significantly once again. For fans of the series as well as the gaming community at large, this tech demo is a true highlight that builds excitement for The Witcher 4 – not only for its visual advancements but also for the gameplay progress of the next era

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