OSR Sword & Sorcery Adventure Fodder-A d100 Contraband Table: Black Markets, Smugglers & Shadow Vaults For The Castles & Crusades rpg

 Here is a d100 random contraband table tailored for the gritty, low-magic, and illicit underbelly of a Castles & Crusades campaign. This picks right up on the blog from 

OSR Sword & Sorcery Adventure Fodder - d100 Random Serpent People & Treasure Table tailored for the Serpent Tower fully compatible with Castles & Crusades (and most classic OSR systems)

In classic Sword & Sorcery fashion, these items range from forbidden texts and illicit substances to cursed relics, strange alien artifacts, and black-market commodities.

d100 Contraband Table: Black Markets, Smugglers & Shadow Vaults

d100	Item Description	C&C Mechanical / Story Effect	Value (gp)
01–03	Lotus Dust (Red): Fine crimson powder refined from desert blooms. Highly addictive.	Grants +2 to Wisdom saves vs. Fear for 1d4 hours, but imposes a -2 penalty to Constitution checks for 24 hours after.	50
04–06	Lotus Dust (Black): Rare, dangerous narcotic used by sorcerers.	Allows a caster to cast one spell without expending a slot, but requires a successful CON Check (CL 3) or the user suffers 2d6 damage and loses 1 point of CON for 1 day.	250
07–09	Unstamped Royal Bullion: Raw silver or gold ingots missing the local sovereign’s mint stamp.	Possession is a capital offense. Legitimate merchants will not accept it.	Face value (-30% fencing penalty)
10–12	Demon-Blood Ink: Glowing, foul-smelling liquid harvested from fiendish entities.	Used to scribe scrolls or tattoos; gives +1 to spell CL for fire/curse spells, but user takes 1 damage per spell level cast.	100 / vial
13–15	Poison: Spider-Kiss: A milky, odorless liquid harvested from giant arachnids.	Injury Poison: Save vs. Poison (CL 2) or suffer 1d6 STR damage and paralysis for 1d4 turns.	150
16–18	Poison: Serpent’s Breath: A volatile gas held in fragile clay globes.	Inhaled Poison (10 ft radius): Save vs. Poison (CL 1) or suffer 2d4 CON damage.	300
19–21	Forbidden Tome: The Book of Unspoken Names: Leather-bound volume written in human skin.	Reading requires a WIS Check (CL 4). Success grants knowledge of a true name of an outer entity; failure causes permanent insanity (or -2 WIS).	500+
22–24	Stolen Temple Relic: A platinum chalice encrusted with rubies, dedicated to a rival deity.	Carrying it draws divine retribution or holy assassins. Priests can detect it within 60 ft.	800
25–27	Counterfeit Tithe Tokens: Brass coins stamped with sacred symbols to bypass road tolls and temple taxes.	Requires a CHR Check (CL 2) to pass off. Failure draws immediate execution or imprisonment.	20
28–30	Unrefined Shadow-Glass: Razor-sharp obsidian-like shards from the Nether Plane.	Weapons forged with it hit for +1 extra damage, but break on a natural 1.	120
31–33	Blood-Ruby of Acheron: A pulsed, dark-red gem that feels unnaturally warm.	Emits faint evil. Cultists will kill to retrieve it. Acts as a focus to summon minor fiends.	600
34–36	Flesh-Borer Beetles (Jar of 1d6): Burrowing parasites kept in a lead canister.	Used as an instrument of torture or assassination. Imposes 1d4 persistent damage/round until removed with fire or oil.	75
37–39	Forgers' Seal Stamp: A brass seal duplicating the High Chancellor's personal signature.	Grants +4 to forgery checks involving official writs, land grants, or execution pardons.	400
40–42	Preserved Homunculus Eye: A preserved eye floating in murky formaldehyde.	Allows the holder to see through invisible barriers once per day (1 min duration) when pressed to their forehead.	200
43–45	Ghost-Silk Veil: Ethereal cloth woven by spectral hags.	Renders wearer immune to non-magical tracking, but attracts undead within 100 feet.	350
46–48	Smuggled Slaves / Captives: Prisoners bound in iron chains, destined for arena pits or altars.	Ethics aside, freeing them may gain allies or dangerous enemies; selling them requires a dark market.	50–100 per head
49–51	Forbidden Map of the Undercity: Charcoal map detailing secret passages beneath the King's palace.	Reveals secret entrances to vaults and dungeons, bypassing surface guards.	300
52–54	Soul-Gem (Flawed): A glowing amethyst containing a trapped soul.	Sorcerers can drain the gem to regain 1d4 spell levels, destroying the soul forever.	500
55–57	Alchemist's Fire (Unstable Batch): Highly volatile incendiary flasks.	Deals 2d6 fire damage on impact, but detonates if the bearer takes a critical hit or falls prone.	35 / flask
58–60	Poison: Corpse Dust: Fine gray powder harvested from ghoul claws.	Ingested/Contact: Save vs. Poison (CL 3) or suffer ghoul fever (-1 CON/day until cured).	200
61–63	Forbidden Herbalist’s Kit: Instruments used to mix illegal abortifacients, mind-altering draughts, and slow poisons.	Grants +2 to checks when crafting illegal concoctions.	100
64–66	Mummified Sorcerer’s Hand: A dried hand wearing a silver ring.	Can act as a spell focus, granting +1 to Caster Level, but curses the user with horrible nightmares.	450
67–69	Star-Metal Ore: Unworked meteorite iron, banned by decree of the Iron Guild.	Used to forge weapons that bypass damage reduction of outer entities and demons.	600
70–72	Blasphemous Idol: A depiction of a tentacled, slumbering elder god carved from strange green stone.	Anyone holding it must make a WIS Check (CL 1) daily or suffer alignment shift toward Chaos.	150
73–75	Smuggled Royal Escutcheons: Blank knightly armorial bearings and forged lineage scrolls.	Allows a non-noble character to claim nobility with a successful CHR Check (CL 3).	250
76–78	Vial of Gorgon Bile: Corrosive green acid stored in a thick lead vessel.	Dissolves iron locks or grates in 1 round; deals 3d6 acid damage if thrown.	180
79–81	Rune-Etched Slave Collar: Iron collar inscribed with binding magic.	Prevents the wearer from speaking or casting spells with verbal components.	150
82–84	Illegal Siege Blueprint: Detailed plans for a heavy catapult or army-breaking engine.	Highly sought after by rebel warlords, bandit chieftains, and rival kingdoms.	500
85–87	Phial of Dream-Wine: Rare vintage laced with crushed lotus and fey-spores.	Drinker falls into a trance for 8 hours; during this time, they receive cryptic visions of the future (Castle Keeper's choice).	120
88–90	Preserved Basilisk Gland: Stored in a sealed jar of brine.	Used by alchemical guilds to craft oils of petrification or un-petrification.	300
91–93	Stolen Tax Chest (Locked): Heavy iron chest bearing the Royal Seal.	Contains 1d6 x 100 gp and 2d6 x 100 sp, but the lock is trapsmith-crafted (DEX Check CL 5 to pick).	Variable
94–96	Tome of Seductive Heresy: A philosophical text that turns citizens against the state religion.	Possession guarantees torture and execution by the Inquisition.	80
97–98	Cursed Idol of Zath: A spider-shaped figurine carved from black jet.	Summons 1d4 giant spiders under the holder's control once per week, but requires a sacrifice of 1 hp per HD of summoned beasts.	750
99	Key to the Royal Treasury: A heavy, intricate skeleton key forged of cold iron.	Unlocks a specific subterranean vault beneath the capital.	Priceless
100	The Serpent's Heart: A glowing, baseball-sized emerald that whispers in the dark.	Grants +2 to spell resistance, but draws the immediate attention of a powerful liche or ancient sorcerer who wants it back.	2,000+

Integration Notes for Castles & Crusades (Siege Engine):

• Siege Engine Checks: For any contraband that triggers an effect, use the standard Primes system. If a stat (e.g., CON, WIS, CHR) is a Prime for the character, the Challenge Base (CB) is 12; otherwise, it is 18, plus the Challenge Level (CL) listed in the item description.

• Fencing Rules: Selling contraband usually yields only 25%–50% of base value unless sold directly to a buyer who specifically needs it.

• Law Enforcement Encounter: Whenever characters carry contraband through city gates or guarded areas, roll a d6: on a 1–2, guards or inquisitors perform a detailed search.