The game has been updated to fix issues regarding playing co-op on a keyboard or when playing with a controller+keyboard combo. An important note is that "player 1" and "player 2" use different keys on the keyboard regardless of what setup you use. They are as following:
[b]Player 1[/b]
[list]
[*] Move - WASD
[*] Jump - Space
[*] Use - E
[*] Call Companion - F
[/list]
[b]Player 2[/b]
[list]
[*] Move - Arrow keys
[*] Jump - L
[*] Use - K
[*] Call Companion - J
[/list]
[img]https://steamcdn-a.akamaihd.net/steamcommunity/public/images/clans/33668480/2c91814700aced62dbcfa85560b1a5cbc17b7a7b.png[/img]
When playing single player, the controls for Player 1 is used, with the addition of using Q to change character.
If the game does not update for you, you can restart Steam to force it.
[i]Update March 14[/i]
To be clear - you can now play the game coop using the following setups:
[list]
[*] both players on the same keyboard
[*] one player on the keyboard, one player using a controller
[*] both players using a controller each
[/list]
If you own a controller that does not work with the game, please let us know.