Destapler

Level 1 of the Dungeon
(0, 0, D:1)
  30 stones
(31, 2, D:1)
  a +0 club
(31, 3, D:1)
  a +0 falchion
(32, 7, D:1)
  21 stones
(42, -9, D:1)
  a +0 dagger
(45, -16, D:1)
  a +0 whip
(46, 28, D:1)
  a +0 short sword

Level 2 of the Dungeon
(13, -1, D:2)
  a +0 dagger
(13, 1, D:2)
  a +0 club
(16, 29, D:2)
  a staff of earth
(17, 12, D:2)
  16 sling bullets
(26, 23, D:2)
  a +0 trident
(30, 24, D:2)
  a +0 club
(46, 0, D:2)
  a +0 spear

Level 3 of the Dungeon
[Shop] Usonumas's Weapon Emporium
  9 stones (12 gold)
  a +0 war axe of flaming (116 gold)
  the +2 longbow "Ukkumpec" {vorpal, rCorr} (410 gold)
    Any ammunition fired from it inflicts extra damage upon your enemies.
    
    rCorr:     It protects you from acid and corrosion.
  a +0 morningstar (56 gold)
  a +0 trident (49 gold)
  a +1 quarterstaff of distortion (238 gold)
  a +0 hunting sling (21 gold)
  a +0 spear (42 gold)
(0, 0, D:3)
  a +0 robe
  a +0 dagger
(8, -29, D:3)
  18 sling bullets
(11, -33, D:3)
  a +0 dagger
(12, -33, D:3)
  a +0 robe
  a +0 dagger
(12, -32, D:3)
  a +0 robe
  a +0 dagger
(12, -30, D:3)
  a +0 club
(15, 3, D:3)
  15 arrows
(22, 8, D:3)
  11 bolts
(38, -20, D:3)
  22 stones

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 dagger
  an orc corpse
(12, 16, D:4)
  a giant cockroach corpse
(17, -10, D:4)
  a +0 whip (still there?)
  a +0 flail (still there?)
  4 boomerangs (still there?)
  a +0 leather armour (still there?)
  an orc corpse (still there?)
  an orc corpse (still there?)
(18, -10, D:4)
  a +0 mace (still there?)
  a +0 dagger (still there?)
  an orc corpse (still there?)
  an orc corpse (still there?)
(23, 13, D:4)
  a +0 hand axe