Staircases work just like the game-supplied down-ladders. Each one works only for one use. If you leave the mine or return to a higher level and look for one you placed earlier, you will find that it is gone. In addition, once a staircase has been placed, it cannot be picked up again, even if it has not been used. | Staircases work just like the game-supplied down-ladders. Each one works only for one use. If you leave the mine or return to a higher level and look for one you placed earlier, you will find that it is gone. In addition, once a staircase has been placed, it cannot be picked up again, even if it has not been used. |