By default the game is controlled with mouse and keyboard on the PC but you can easily plug a controller in and use that. (gamespace.com)
The controller, that replaces dual analog sticks with track pads, provides PC gamers with an easier and more comfortable way to play games designed for mouse and keyboard controls. (thatvideogameblog.com)
You can only use mouse and keyboard for a single player game. (mastiff-games.com)