The Witcher 4 tech demo shows off new features in Unreal Engine 5.6

The Witcher 4 is still years away from release, but we now have a much better idea of what the open-world RPG will look like.

CD Projekt Red showed off a gorgeous tech demo of The Witcher 4 during Epic Games’ State of Unreal keynote this morning at Unreal Fest 2025. What we saw wasn’t actual gameplay footage — the developer worked with Epic to make this playable build specifically for the conference — but it does show off some of the new Unreal Engine 5.6 features that will power the game.