Crypt Crawler

Item	Chance	Quantity
Plagued Flesh Sample Quest item	≈ 80%	2–4
Crypt Fiend Parts	≈ 70%	1–6
Invader's Scourgestone	≈ 35%
Dripping Spider Mandible	≈ 31%
Thick Spider's Silk	≈ 19%
Shadow Silk	≈ 12%
Hard Spider Leg Tip	≈ 11%
Bindings of Elements	≈ 4.1%
Huge Venom Sac	≈ 1.7%
Thorium Lockbox	≈ 0.39%
Star Ruby	≈ 0.3%
Book: Gift of the Wild II	≈ 0.3%
Aquamarine	≈ 0.29%
Codex: Prayer of Fortitude II	≈ 0.22%
Tome of Arcane Brilliance	≈ 0.22%
Pattern: Felcloth Shoulders	≈ 0.08%
Pattern: Heavy Scorpid Belt	≈ 0.08%
Traveler's Backpack	≈ 0.08%
Codex: Prayer of Shadow Protection	≈ 0.07%
Formula: Enchant Bracer - Superior Stamina	≈ 0.06%
Pattern: Felcloth Hood	≈ 0.06%
Pattern: Felcloth Robe	≈ 0.06%
Pattern: Frostweave Pants	≈ 0.06%
Pattern: Runecloth Shoulders	≈ 0.06%
Pattern: Runic Leather Belt	≈ 0.06%
Pattern: Runic Leather Pants	≈ 0.06%
Plans: Radiant Leggings	≈ 0.06%
Plans: Thorium Helm	≈ 0.06%

Drops and chances are estimates; not all have been confirmed in the current game. 387 rarer world drops are not listed.