The game — developed by Acquire — sees players assume the role of a ninja assassin in a war-torn landscape. With three opposing factions fighting for control, players "must choose which of these forces to support by taking on various missions". Your choices will "allow for a variety of outcomes and constantly changing missions".
Namco Bandai hopes that the game's open-ended storyline will "help to create a rich and diverse experience for any aspiring assassin".
There's more on the PlayStation Blog.