Hello ! Thank you for the feedbacks.
As I mentionned in previous comments, I will patch the game for US keyboards.
And concerning your second point about digging 2 squares away : this is not a bug at all :) ! Actually, we made this choice to let the player have a more flexible way of thinking his way through the cave. And for the technical aspect of it, I do use a custom distance detection that allows me to implement lots of detections features, even out of grid or square elements. It might serve in the game in the future, who knows ?