I very enjoy the game! I really like the graphics.
But I got stuck here. I had the 4th slot which was straight up, but I couldn't dig the ground. I tried to buy another shape but still I couldn't dig the ground
I'm glad you like that game!!!
And ... Ughhh - A very tricky situation! And yeah the rules are that you can't dig in every direction! Only where the tunnel is like "cut of" you can continue in that particular direction, e.g. the tile to the bottom right of you. So in your case you'll have to go around the rock.
I'll need to ask you: Did you you trap yourself like that or did the maze generate this way? I really need to know this, since I try to improve the world generation as far as I can!
I think I trapped myself. I digged the whole way to that location (except the door parts). The area (in the image) that I was in couldn't be digged. I tried to go to the tile below and the tile on the right and couldn't dig. I had over 400 gold and bought different shapes but still I couldn't do anything in that area.
Ok I see you problem - The thing is - the shapes need to connect to EVERY tile in its surroundings - It has to connect to every tunnel-exit, and it cant lead into rocks. Its kinda tricky to wrap your head around at first, I know. But these are the rules. I definitely should have made a tutorial - but there was not enough time :/