Dreamfall: The Longest Journey/Controls

The game can either be played using a mouse and keyboard, or with a game controller. The game controller is the easiest to use, as the four interaction buttons map directly to the four action buttons on the right of a traditional Playstation-style gamepad, and the character and camera are moved by the directional pad and sticks.

Game controller
This can be configured from the settings, and tested from here too.