Hitman (2015) Part 1 Hitman is a action-adventure stealth video game that is currently under development by IO Interactive and will be published by Square Enix for Microsoft Windows, PlayStation 4 and Xbox One on 8 December 2015. It will be the sixth entry in the Hitman video game series. Hitman (2015) Part 1 Hitman (2015) Walkthrough Hitman (2015) Playthrough Hitman (2015) Gameplay Hitman (2015) ENDING