Hello ! Thank you for giving the game a try, and the feedback. As for them,
1 - I know about the A key (we do use a Azerty keyboard here so the A key is the Q key for us). Nevertheless, I will correct it before tomorrow.
2 - Yes, it is an intentionnal feature as the exploration is mainly by digging, we wanted to let the player have a bigger range of action.
3 - Thank you, it is not ours (but free use still) but we missed to add the name in the credits, I will definitely patch this so the honors can go to the original creator
4 - The game is the "explore and find your way" type. Otherwise, you have to find your dwarf buddies locked in the map to bring them back at the beginning.
Hope I did answer all of the questions and make sure to play it again during the week. I'm gonna patch most of the issues we encountered.