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Particle City

Games & Interactive
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Founded
2015
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About Particle City

Particle City was an American mobile game development studio focused on competitive games for iOS and Android. Established in 2015, it developed mobile adaptations of the Titanfall universe through collaboration with Respawn Entertainment and publisher Nexon. Its work explored how the franchise’s combat, characters and tactical possibilities could translate into collectible card games and real-time strategy experiences.

The company grew out of Nuclear Division, a mobile startup launched in April 2014 by Vince Zampella and Larry Pacey. The venture was reorganized and branded as Particle City in 2015. Based in the Los Angeles area, the studio worked closely with Respawn, sharing premises and creative involvement while developing its own mobile projects.

Mobile Titanfall development

The studio’s first announced project, Titanfall: Frontline, was a collectible card battler published by Nexon M. Announced in September 2016, it entered soft-launch testing on iOS and Android. Its development explored a card-based interpretation of the franchise, but the team concluded that the approach did not adequately capture the fast pace and vertical intensity of the original games. Cancellation was announced in January 2017, and its servers went offline on January 20.

Particle City subsequently developed Titanfall: Assault, a mobile real-time strategy game combining tactical squad deployment, lane control and deck building. Released worldwide on August 10, 2017, it offered a different approach to adapting the franchise, emphasizing battlefield decisions and competitive multiplayer within a mobile format.

The studio’s production capabilities included game design, software engineering, real-time 3D art and animation, and live game maintenance. Its projects brought together mobile development expertise with Respawn’s franchise knowledge and Nexon’s publishing support.

Titanfall: Assault ended service on July 30, 2018, with removal from digital storefronts the following day. Particle City ceased operations after the game’s commercial conclusion.

More about Particle City

Historical leadership

  • Larry Pacey served as CEO. Before co-founding the venture, he was executive vice president of global products at WMS Gaming.
  • Co-founder Vince Zampella served as creative advisor and board member while also leading Respawn Entertainment.

Production and collaboration

  • The studio used cloud game architecture and Unity3D pipelines.
  • Its art leadership coordinated a cross-country team, developing the visual identity of a new mobile interpretation of the Titanfall universe from concept through completion.
  • The October 2015 arrangement with Respawn and Nexon was a multi-year worldwide publishing agreement to fund and publish mobile Titanfall titles.

Industry recognition

Titanfall: Assault received a Game of the Year nomination at the 2018 Mobile Games Awards. This recognition was for the game.

Notable credits

2 credits
  • Titanfall: Frontline
  • Titanfall: Assault

Offices

Current and former locations of Particle City

2 locations

  • Los Angeles office

    Former headquarters
    20131 Prairie St, Chatsworth, CA 91311Los Angeles, California, United States

    Historical overall headquarters and engineering office in Chatsworth, co-located with Respawn Entertainment.

    View map

  • Orlando office

    Former office
    Orlando, Florida, United States

    Historical art direction and creative operations branch.

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