I tested using PS3 controller but any Xbox controllers should also work.
Ok, I wasn't clear :) what are the PC keyboard controllers? Can i jump or climb, etc.?
No jump and climb. Just basic movement using the arrow (for keyboard) and joystick (for controller) and use tools, save items, interact etc. There should be a somewhat input helper in the game to indicate what actions you can take and which button to press. I plan to make it possible to rebind control, but it's not currently possible in this version.