Hi I'm not the author of the game, but I have played this multiple times bc it is such a fun lil idle game... however this is also a card game, and the author has decided to make the artistic choice to make the cards look like they've been hand placed, which means that even if a card isn't on top, you can still see a bit of it, and your screen reader may be picking it up which is why it could be reading the iron pickaxe card multiple times. also, very few of the cards have labels on them, just visuals making them look like actual playing cards but instead of the playing card suits it's the resources needed to buy the cards. I don't know how easy it would be to include what the resources are without messing up the original design of the cards so screen readers can actually pick up on it, but I'm sure it's not impossible.
Your frustrations with the game are entirely because you can't see, because the game wasn't made with blind people in mind, but that doesn't mean that you shouldn't get to enjoy the game and the accessibilities shouldn't be too difficult to implement.