A new Nvidia tech demo features real-time AI characters that react to player decisions

The Covert Protocol tech demo.
(Image credit: Nvidia)

Nvidia has unveiled a new tech demo showing off AI video game characters with speech and animation powered by the Nvidia Avatar Cloud Engine (ACE) as part of GDC 2024 and GTC 2024. 

Created in collaboration with the AI gaming startup Inworld AI, the playable demo is built in Unreal Engine 5. It features Nvidia ACE technology combined with the Inworld Engine in order to allow developers to implement realistically animated AI-driven NPC characters that dynamically react to player decisions. 

Titled Covert Protocol, the demo sees you step into the role of a private detective and engage various characters in conversation in order to uncover information and progress through objectives.

You can see some short clips of the demo for yourself in a recently released explainer video that also shows a few interesting glimpses at the software development kit (SDK) behind the scenes. This includes a screen featuring some written character details, where the developer has explained what a specific character knows in-universe, outlined some of their backstory, and filled out some information regarding their current mood and personality. 

All of this information then informs how the character will interact with players in the game. Inworld AI CEO Kylan Gibbs says that “the combination of Nvidia Ace microservices and the Inworld Engine enables developers to create digital characters that can drive dynamic narratives, opening new possibilities for how gamers can decipher, deduce, and play.”

Analysis: Do players actually want AI?

While the concept of NPC characters that can react to your actions might sound tempting on paper, it does raise the question of whether players actually want generative AI technology in their games. The sprawling role-playing game (RPG) Baldur’s Gate 3 was one of the biggest hits of last year, in no small part due to its meticulously crafted narrative and detailed characters.

Although Covert Protocol is undeniably impressive from a purely technological standpoint, it’s hard to imagine that character dialogue generated by AI would be able to hold a candle to something that has been carefully constructed by a team of skilled writers. The dialogue shown off so far also seems quite basic and mainly involves characters sat around in static rooms. 

Whether such technology can actually be implemented into the complex world of a fully-fledged game has yet to be seen, but Inworld says that it will be releasing the source code for Covert Protocol at an unspecified point in the near future in order to allow developers to learn from its code and implement similar systems in their own creations. 

You might also like...

TOPICS
Dashiell Wood
Hardware Writer

Dash is a technology journalist who covers gaming hardware at TechRadar. Before joining the TechRadar team, he was writing gaming articles for some of the UK's biggest magazines including PLAY, Edge, PC Gamer, and SFX. Now, when he's not getting his greasy little mitts on the newest hardware or gaming gadget, he can be found listening to J-pop or feverishly devouring the latest Nintendo Switch otome.

Read more
Nvidia app
Tired of manually optimizing your games? Nvidia's new G-Assist could save you time
Nvidia HQ
Nvidia calls DeepSeek an 'excellent AI advancement' and praises the Chinese AI app's ingenuity
Horizon Zero Dawn Remastered
Future PlayStation games could have AI-powered characters, if this leaked prototype of Aloy is anything to go by
Artificial intelligence India
Nvidia is jumping on the agentic AI bandwagon with new "blueprints" to simplify work
NVIDIA GeForce RTX 50 Series image
NVIDIA GeForce RTX 50 Series GPUs supercharge generative AI on your PC
Super Mario Odyssey
ChatGPT is the ultimate gaming tool - here's 4 ways you can use AI to help with your next playthrough
Latest in Gaming
Four operators survey Verdansk. One holds a sniper rifle, one binoculars, another holds is landing with their parachute, while the last wears a skull mask
New Call of Duty: Warzone trailer shows a beautiful rebuilt Verdansk, but some fans want more: 'it won't be the same unfortunately'
Marvel Rivals
Marvel Rivals will get two new hero skins for Moon Knight and Black Panther this week meaning I'll now need to farm even more Units
A close up of the PlayStation symbol at the top of a PS5 Slim console with a white brick background
Sony has dropped a new PS5 update, improving activities and adding more emoji support
Nintendo Sound Clock: Alarmo
Nintendo Sound Clock: Alarmo gets new update with more customizable features ahead of the Switch 2 Direct
NYT Connections homescreen on a phone, on a purple background
NYT Connections hints and answers for Wednesday, March 26 (game #654)
inZOI.
inZOI early access is the most disappointed I’ve been with a game in years
Latest in News
Zotac Gaming RTX 5090 Graphics Card
Nvidia Blackwell stock woes are compounded by price hikes as more RTX 5090 GPUs soar in pricing, and I’m sick and tired of it all at this point
A collage of Elizabeth Olsen's Scarlet Witch and Tatiana Maslany's She-Hulk
Marvel fans are already tired of Doomsday and Secret Wars cast gossip as two more superheroes get linked with roles in the next two Avengers movies
Four operators survey Verdansk. One holds a sniper rifle, one binoculars, another holds is landing with their parachute, while the last wears a skull mask
New Call of Duty: Warzone trailer shows a beautiful rebuilt Verdansk, but some fans want more: 'it won't be the same unfortunately'
An Apple Music pink/pixellated poster advertising DJ with Apple Music
DJ with Apple Music lands, allowing subscribers to build and mix DJ sets directly from its +100 million-song catalog
The Meta Quest 3 and controllers on their charging station which is itself on a wooden desk next to a lamp
Forget Android XR, I've got my eyes on Vivo's new Meta Quest 3 competitor as it could be the most important VR headset of 2025
Samsung Galaxy S25 from the front
The Now Bar on Samsung One UI 7 is about to get a lot more useful – and could soon match Live Activities on iOS