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Unreal Editor for Fortnite’s AI character creation tool has ambitions beyond Darth Vader
Epic Games took a big step with conversational AI when it added a new version of Darth Vader in Fortnite that could speak with players.
During the 2025 State of Unreal keynote, Epic revealed that a new tool in UEFN called the Persona Device will allow anyone to create non-playable characters (NPCs) with AI-driven personalities. Epic Games executive vice president Saxs Persson said this was meant to show how the Persona Device can “enable emergent, reactive gameplay for creators and deeper experiences for players.” Mr. Buttons, for example, wouldn’t let you leave the room — if you tried to open the door, you’d simply return to the catwalk and see a visibly angry robot (now with a red eye) looking back at you.
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