Blizzard has just posted their three official Starcraft II mods. There’s a Protoss cooking game called Auir Chef, a head-to-head match-3 called Starjeweled, and a co-operative zombie survival mode called Left 2 Die. This latter mode is an adaptation of the Outbreak campaign mission.
This is a companion discussion topic for the original entry at http://www.quartertothree.com/fp/2011/01/25/an-official-reason-to-wade-into-starcraft-iis-mod-quagmire/