Contract is a side-scrolling shooter in which you must shoot, hack and massacre your way past armed guards, security systems and other challenges in order to reach your targets. You play as a man, blackmailed into the art of assassination by the kidnappers of his brother.

In order to get to your targets you must fight your way through mountains of private security and hungry dogs, find security pannels to hack locked doors and make your way to your unwitting targets. Upgrade your gear with the money you gain from your contracts to ensure you always stay on top of the increasingly difficult tasks as you progress through the game.