Changes

; The iron pickaxe gets stuck in the rock. : This one is a basic anti-macro measure. Move around a bit and you will free your pickaxe. Until then you will be unable to perform further mining actions.

; You fail to produce anything, the here. The rock is stone hard. : Occurs on the surface. This means the tile you are attempting to excavate is actually an ore vein. There's nothing to do about it, you simply have to make your entrance on another tile. Note that if you make the entrance one tile below the vein, the tunnel will open right into the vein and cannot be extended until the vein is depleted.

; Dirt will flow in. : Occurs inside a mine. This means the tile you are mining is very close to the surface. It would ordinarily create an entrance, but the rock layer on the surface has not been uncovered. If you dig up the dirt on the surface above the tile, further mining will create a cave entrance (or exit, as it may be.); ? A dangerous side shaft will appear. : Occurs inside a mine. This message appears when the tile you are excavating shares a single corner with an existing tunnel. To excavate it you must first excavate so the target tile shares an entire wall with the other tunnel. See example on the right.; The cave walls look very unstable. You cannot keep mining here. : Occurs inside a mine. This means Exact cause unknown, it happens when mining close to the top of the tile being mined is adjacent to a cave entrancerock layer, and cannot can sometimes be openedavoided by mining downwards. Other: "Dirt will flow in" has not been seen lately, it may have been replaced by "The cave walls look very unstable". There's nothing also a message for attempting to do about itmine underwater, except wait for that entrance to collapsetext unknown.