Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 short sword
(1, -1, D:1)
  25 bolts

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 spear
(0, 1, D:2)
  a rat corpse
(2, 5, D:2)
  2 gold pieces

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 hand axe
(21, -6, D:3)
  a rat corpse
(25, -8, D:3)
  a +0 club
  a goblin corpse

Level 4 of the Dungeon
(0, 0, D:4)
  a quokka corpse
(1, 0, D:4)
  a ball python corpse