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Demonware, Inc.
Industry Computer and video games
Interactive entertainment
Founded 2003; 14 years ago (2003)
Founder Dylan Collins and Sean Blanchfield
Headquarters Dublin, Republic of Ireland
Products Middleware
Number of employees
Parent Activision

Demonware is an Irish software development company and a subsidiary of Activision Blizzard. Demonware's products enable games publishers to outsource their networking requirements, allowing them to concentrate on playability. The organisation has offices in Dublin, Ireland; Vancouver, Canada; and Shanghai, China;.


Demonware was founded in 2003 by Dylan Collins and Sean Blanchfield.[1][2] In May 2007, the organisation was purchased by Activision. During the acquisition, Activision offered long-term contracts to the management team and employees of Demonware.[2]

Mike Griffith, CEO of Activision, offered the following statement following the corporate acquisition: "The acquisition of Demonware will enable us to eliminate many of the challenges associated with online multiplayer game development, reducing development time and risk, and allowing us to deliver consistent, high-quality online gaming experiences. In addition to increasing our talent pool of highly skilled engineers, Demonware's suite of technologies combined with Activision's own library of tools and technologies will enable us to easily share online development capabilities on multiple platforms across our development studios".[2]


Primary products developed by Demonware include the "Demonware State Engine" and "Matchmaking+". The State Engine is a high-performance state synchronization C++ programming framework that eliminates the need to reinvent netcode in multiplayer games. Matchmaking+ provides services for multiplayer games such as matchmaking, user profiling, and gaming statistics. Demonware's main product, which is used for multiplayer in the Call of Duty franchise (among other games) is programmed in Erlang[3] and Python[4]


  1. ^ "Game Developers Ireland - Irish Game Development Community". Archived from the original on February 14, 2012. Retrieved May 11, 2012. 
  2. ^ a b c "Activision confirms Demonware acquisition | GamesIndustry International". March 6, 2007. Retrieved May 11, 2012. 
  3. ^ "Erlang and First-Person Shooters" (PDF). 2011. Archived from the original (PDF) on September 13, 2012. Retrieved May 11, 2012. 
  4. ^ "Python at Demonware". 2011. Retrieved December 18, 2012. 

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