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TechRadar
Demi Williams

Atomic Heart 2 officially announced at Summer Game Fest, along with an Atomic Heart multiplayer spin-off, The Cube

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  • Atomic Heart 2 has been officially announced at Summer Game Fest
  • The game looks a lot more open than the first
  • A spin-off multiplayer title named The Cube was also revealed at the show


  • Atomic Heart 2 has officially been announced at Summer Game Fest
  • The game is being developed for PC and console
  • Mundfish also unveiled The Cube, a first-person multiplayer spin-off game set in the same universe as Atomic Heart

Mundfish has officially announced the sequel to Atomic Heart, along with a spin-off first-person multiplayer game set in the same universe called The Cube.

Announced during Summer Game Fest alongside an explosive gameplay trailer showcasing the game's dystopian and retrofuturistic open world, Atomic Heart 2 is being developed for PC and console.

"Get ready for dangerous new adventures that will redefine the gameplay experience and raise the bar for the genre's capabilities," reads the game description.

The studio also said the game will have a heavy emphasis on the story, role-playing elements, and player freedom within the retrofuturistic universe of an alternate history.

There's no release date just yet, but you can wishlist the game on Steam right now.

After this, the studio also unveiled the first look at its Atomic Heart spin-off game, The Cube, which is set a few years after the original games. This role-playing (RPG) shooter is also being made for PC and console and doesn't have a release date.

"At Mundfish, we were the first in the industry to implement a technology that allows thousands of objects to move and rotate simultaneously across massive stretches of terrain - online and in real time. No other game has ever done this before," said Robert Bagratuni, Founder and CEO of Mundfish, in a press release.

"This became possible thanks to our innovative proprietary split-rendering system, which redefines how motion is handled in interactive environments. The technology delivers maximum performance even under extreme load. In The Cube, physics, ballistics, and gravity feel completely natural - but under the hood, it’s powered by rocket science. The system enables seamless transitions, precise object tracking, and synchronized multiplayer in a living, ever-evolving world. It’s a true technological breakthrough."

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