Krafton and Nvidia Collaborate on Local AI for Smarter Co-Playable Characters in PUBG and inZoi

Krafton, the studio behind the popular battle royale game PUBG, has partnered with Nvidia to introduce a groundbreaking on-device AI system that will revolutionize NPC (Non-Playable Character) interactions. This new technology, built around a Small Language Model (SLM), is designed specifically for video games and will be integrated into both the PUBG franchise and the upcoming life simulator, inZoi.

What Changed Technically

The key innovation here is the development of an SLM that runs entirely on local devices, without any cloud dependency. This means:

• No Latency: Since the AI processing happens locally, there's no network lag to slow down real-time interactions.
• Data Privacy: User data remains on the device, reducing privacy concerns associated with cloud-based solutions.
• Cost Efficiency: Eliminating the need for continuous server connections can reduce operational costs and avoid subscription fees.

How It Works

The SLM is designed to handle a wide range of in-game scenarios:

• PUBG Franchise:

  • Verbal Communication: CPCs (Co-Playable Characters) can engage in natural, real-time conversations with players.
  • Strategic Assistance: These AI companions can provide tactical advice and coordinate actions during gameplay.
  • Immersive Interaction: CPCs can perform a variety of actions, from dancing to executing complex maneuvers, enhancing the overall gaming experience.

• inZoi:

  • Dynamic NPCs: In this life simulation game, citizens known as "Zois" will have their own lives and personalities.
  • Real-Time Interactions: Zois will follow fashion trends, spread rumors, develop reputations, and make decisions based on their in-game experiences.
  • Complex Social Dynamics: The SLM enables intricate social interactions, making the game world feel more alive and responsive.

Why This Matters

Kang-Wook Lee, head of Krafton’s deep learning division, highlighted the potential impact of this technology during CES 2025. According to Lee, these advancements can help PUBG attract a new audience by adding layers of depth and engagement to an already mature game. For inZoi, the SLM promises to create a highly immersive and dynamic simulation environment.

Implementation Details

• Local Processing: The AI model runs entirely on the user's device, ensuring low latency and high responsiveness.
• Scalability: The SLM is optimized for performance, allowing it to run smoothly on a variety of hardware configurations.
• Customization: Developers can fine-tune the AI behaviors to fit specific game mechanics and player preferences.

Real-World Examples

Krafton demonstrated the capabilities of the new AI in a video showcasing PUBG gameplay. In one scenario, an NPC assists a human player by providing strategic advice and even performing dance moves. This level of interaction is unprecedented and highlights the potential for more engaging and realistic co-playable characters.

In inZoi, the SLM brings to life a world where NPCs have their own lives, making decisions based on real-time interactions and environmental factors. For example, a Zoi might decide to follow a new fashion trend or spread a rumor through the game's social network.

Conclusion

The collaboration between Krafton and Nvidia marks a significant step forward in AI-driven gaming. By leveraging local processing and advanced language models, these co-playable characters will offer players more immersive and dynamic experiences in both PUBG and inZoi. As this technology continues to evolve, we can expect even more innovative applications in the future of interactive entertainment.