Epic Games Expands AI Characters in Fortnite with Creator Tools

Epic Games is pushing the boundaries of interactive gaming by expanding the presence of AI-powered characters in Fortnite. Following the tremendous popularity of AI Darth Vader, which allowed players to engage in voice conversations with an AI version of the iconic Star Wars villain, Epic is now empowering creators to build their own AI-driven NPCs for in-game experiences.

The AI Darth Vader character was a complex feat, combining voice recognition with an AI-generated voice that mimicked James Earl Jones’s iconic tone. Epic’s EVP of the Fortnite ecosystem, Saxs Persson, revealed that significant effort went into refining how Vader responded to players and ensuring the character integrated seamlessly into gameplay. The result was an immersive, aggressive teammate that felt authentic and engaging.

However, the rollout wasn’t without challenges. A popular streamer managed to get Vader to swear, prompting Epic to implement multiple layers of safety checks and rapid response mechanisms. These safety tools will be available to creators building their own AI NPCs, ensuring that player interactions remain appropriate and controlled.

At Unreal Fest 2025, Epic showcased a live demo of an AI NPC named Mr. Buttons, designed to persuade players to press a giant red button using endless, dynamic voice responses. This demonstration highlighted the potential for AI NPCs to create unique, personalized experiences for every player, enhancing engagement through unpredictable and entertaining interactions.

Epic’s leadership emphasizes that AI is simply another tool to enhance fun and immersion rather than an end goal. While no specific timeline has been announced for more AI NPCs in Fortnite or the upcoming persistent universe co-developed with Disney, the integration of AI is expected to play a significant role in future immersive experiences.

For creators and developers, this means exciting new opportunities to craft dynamic, voice-interactive characters that respond uniquely to player input. However, they should be prepared for a learning curve as they adapt to the new AI tools and safety frameworks Epic has developed through its own experiences.

In summary, Epic Games is pioneering the integration of AI in gaming by providing creators with powerful tools to build immersive, voice-driven NPCs. This innovation promises to transform player experiences with endless interaction possibilities while maintaining safety and quality through robust moderation systems.