Activision is open-sourcing one of the biggest Call of Duty maps ever for AI development and to "expand the knowledge base of the gaming industry"

Warzone 2
(Image credit: Activision Blizzard)

Activision has shared an open-source data set compiled from Call of Duty: Warzone's Caldera map for non-commercial use.

The "near-complete" geometry of the Caldera map is now available on GitHub. The 4 GB data set includes more than five million meshes, 28 million primitives, more than one-billion-point instances, "which can also represent scene metadata such as volumes that we use for lighting processing," as well as in-game character pathing and time samples showing how players behave on the map.

Caldera isn't available in Warzone anymore, but it remains one of the biggest and most complex in the entire Call of Duty franchise's history, and it's also the first major asset in the series' history to be open-sourced. Activision's aim is multi-pronged; the publisher hopes the data set will be a valuable resource in academia and training, support AI development, and speed up the evolution of authoring tools.

"This initiative represents Activision’s commitment to innovation and growth in multiple fields, including AI learning, within the communities of academia and research, while propelling the advancement of game development," the company said. "It brings to life the colossal and carefully crafted map that was home to many epic brawls in Call of Duty: Warzone and is production-proven and battle-tested."

Warzone Caldera

(Image credit: Activision)

Caldera's release to the open-source community will have a ripple effect that goes beyond Call of Duty and even the video game industry. In a press release, the chief technology officer of Disney's Pixar said the data set "marks a significant milestone for the industry," adding, "this initiative not only paves the way for groundbreaking research in environmental geometry and scene construction but also exemplifies the collaborative spirit essential for innovation in our field.

"By making such data available, Activision is empowering developers and researchers alike to explore new frontiers in 3D rendering and simulation, ultimately enriching the creative process across the board."

In a blog post, Activision said the data set can be used by students, educators, and professionals for training, demonstrations, and experimentation. It also said the release will support AI development by providing a playground to facilitate the training of AI models and help evolve authoring tools by testing them against complex geometries and environments.

For its own part, Activision fellow software engineer Michael Vance said "innovations that come from this data set release could give more freedom and flexibility for our content teams to find the most engaging scenarios for our players," and they could even pave the way for game files that take up less hard drive space. "We are excited about what the academic community will produce based on Caldera and look forward to seeing new techniques that we could never have imagined."

With any luck, the best Call of Duty games are still to come.

Jordan Gerblick

After scoring a degree in English from ASU, I worked as a copy editor while freelancing for places like SFX Magazine, Screen Rant, Game Revolution, and MMORPG on the side. Now, as GamesRadar's west coast Staff Writer, I'm responsible for managing the site's western regional executive branch, AKA my apartment, and writing about whatever horror game I'm too afraid to finish.

Read more
soldiers dropping in from the sky and looking over verdansk
Warzone's original map is returning next month, but it's still not enough: "We don't just want Verdansk back. We want everything back"
Call of Duty: Black Ops Cold War
Call of Duty: Black Ops Cold War reportedly surpasses Red Dead Redemption 2's huge development costs, with a massive $700 million budget
Command and Conquer: Generals
EA is "releasing the fully recovered source code" for 4 classic Command & Conquer titles, and it's the best thing a major publisher can do for game preservation
A player wearing a gasmask and holding a gun during the shooter, Call of Duty: Black Ops 6.
Call of Duty season 2 brings back Gun Game and a fan-favorite Zombies weapon we haven't seen in 10 years
Two Splitgate 2 players shooting each other in a new map
Splitgate was eclipsed by Halo Infinite's launch, and 4 years later Splitgate 2 is back with an open alpha to dance on Master Chief's grave
Helldivers 2 Warbond
Helldivers 2 players "became obsessed" with Malevolon Creek, but it was Gabe Newell who really kicked off one of Super Earth's bloodiest battles
Latest in Call of Duty Warzone
soldiers dropping in from the sky and looking over verdansk
Warzone's original map is returning next month, but it's still not enough: "We don't just want Verdansk back. We want everything back"
A man riding a motorbike and shooting a gun during the upcoming game, Call of Duty: Black Ops 6.
Rumored Warzone 2025 map Avalon appears to be fully explorable in Black Ops 6 spectator mode, and with it comes a classic Call of Duty: World at War map
Black Ops 6 Separation Anxiety code
Black Ops 6 Separation Anxiety code and puzzle guide
Warzone's Area 99
There's no sign of Call of Duty's beloved Nuketown map in Black Ops 6 - except for its "birthplace" in Warzone's Area 99 and a nuked version in Sandhouse
Warzone 2
Activision is open-sourcing one of the biggest Call of Duty maps ever for AI development and to "expand the knowledge base of the gaming industry"
Warzone 2
Call of Duty: Warzone 2 averages five million new players a day
Latest in News
Adam Scott as Mark S and Britt Lower as Helly R in Severance season 2
There might have been another reason for Mark's decision in the Severance season 2 finale
Silent Hill f art showing a person covered in plants
Silent Hill f has been pre-emptively banned in Australia, with no reason given for the 'refused classification' rating
Assassin's Creed Shadows review gameplay showing Yasuke overlooking the sea and lush green scenery
Assassin's Creed Shadows has already "surpassed the launches of AC Origins and Odyssey" with 2 million players and counting
Helldivers 2 screenshot showing someone using a big gun
Helldivers 2 boss says "death and rebirth" is a natural part of the games industry, but it's "unnecessarily brutal" right now "because we don't diversify enough"
A Dragon Age character stares out against a blue background.
BioWare makes a return to Dragon Age: The Veilguard with a surprise PC update, months after layoffs and a seemingly final patch
God of War 3
God of War PSP's seamless loading was only possible because a Jak & Daxter game was also running in the background