Certain Affinity

Certain Affinity is a video game development studio based in Austin, Texas in the USA. It was founded in 2006 by ex-Bungie employee Max Hoberman. In addition to staff from Bungie, it also includes ex-members of companies such as Microsoft, Red Storm, Origin, EA, Digital Anvil and NCSoft. The studio has worked closely with Bungie and 343 Industries, having worked on Halo 2, Halo: Reach, Halo 4 and, most recently, ''Halo: The Master Chief Collection.

List of projects related to the Halo franchise

 * Blastacular Pack (2007)
 * Halo Waypoint (2009)
 * Defiant Map Pack (2011)
 * Anniversary Map Pack (2011)
 * Halo 4 's Forge (2012)
 * Majestic Map Pack (2013)
 * Castle Map Pack (2013)
 * Bullseye Map Pack (2013)
 * Halo 2: Anniversary 's multiplayer (2014)