Mortal Kombat UK release date changed It looks like fans will have to wait a bit longer for the 9th installation of Mortal Kombat to hit UK shelves–three days to be exact. Originally announced for April 18th, NetherRealm let word out today that the title will come out April 21st. Don’t worry Yanks, the US release date is still good for April 19th. Three days isn’t that bad of a wait, right? Who knows–hype does things to people.