Summary pulled directly from Steam - Some text may only be applicable to Steam platform

Money Talks. Silence Pays. Prepare to Make a Killing. When assassins from Agent 47's contract agency, The ICA, are eliminated in a series of hits, it seems a larger, more powerful agency has entered the fray. Sensing he may be a target, 47 travels to America, and prepares to make a killing.

• 'Blood Money' system: the cleaner the 'hit' the more money you receive which can be spent on bribing witnesses and police to reduce your notoriety, weapon customisation, specialist equipment and information.
  
• Customisable weapons: modify Agent 47's custom weapons in a variety of ways including sound, recoil, rate of fire, damage, reload speed, accuracy and zoom.
  
• Strong narrative: who is wiping out the ICA and what is their motivation?
  
• New engine: the world of the assassin has never been so interactive or looked so good!
  
• New gameplay techniques: including disarm, distraction, accidents, body disposal, human shield and decoy weapons.
  
• New control and camera system: Agent 47 now moves independently of the camera.
  
• New moves: Agent 47 can now climb, hide, scale ledges and automatically pass low obstacles.
  
• Improved AI: guards will follow blood trails, investigate suspicious items and behaviour. New pathfinder engine provides improved tracking and movement with realistic enemy behaviour and interaction.
  
• Soundtrack by BAFTA-winning composer Jesper Kyd.