Killzone: Mercenary is a first-person shooter video game for the PlayStation Vita, released in September 2013.
Killzone: Mercenary takes place on the planets Vekta and Helghan, locked in an interstellar war. The game is set in between Killzone 2 and Killzone 3 and revisits many of the key events of Killzone, Killzone: Liberation, and Killzone 2 from the perspective of Arran Danner, a mercenary hired to execute operations for the ISA. He is supplied by mysterious weapons dealer Blackjack, and is aided at times by his boss Anders Benoit.
Killzone: Mercenary has received generally positive reviews with an aggregate Metacritic score of 78/100. It managed to highly exceed the first two PS Vita first person shooters, Call of Duty: Black Ops Declassified and Resistance: Burning Skies, which both received fairly negative reviews. The game sold 11,053 copies in Japan within the first week of release. IGN called it "the best portable shooter ever made". TheSixthAxis stated "there’s no other experience like this on a device as small as this". It received the 1st Place 2013 PlayStation Vita Game of the Year Award.
Source: Wikipedia, "Killzone: Mercenary", available under the CC-BY-SA License.