OSR Adventure Fodder - A D100 Random Sword & Sorcery Lovecraftian Encounter Table for Castles & Crusades rpg

 To run a Lovecraftian Sword & Sorcery adventure in Castles & Crusades, lean heavily into cosmic dread, decaying sorcery, alien geometry, and sanity-draining horrors. Use the D100 Random Encounter Table below to stock wilderness travels, subterranean crawls, or city ruins with eldritch threats.

D100 Sword & Sorcery Lovecraftian Encounter Table

d100	Encounter Description
01–04	The Bleeding Monolith: A jagged obsidian obelisk weeping a tar-like substance. Challenge 3 (Cha) check or gain 1 point of madness.
05–08	Migo Scout: A crustacean-like spore-creature from space harvests brain matter using strange copper cylinders.
09–12	Possessed Zealots: $2d6$ cultists chanting in Pre-Human Aklo; their eyes burn with cold, blue fire.
13–16	Deep One Hybrid: A local coastal villager whose frog-like features and bulging eyes indicate an upcoming descent into the ocean depths.
17–20	Alien Spore Fog: A sickly violet fog rolls in. Flesh exposed to it sprouts tiny, blinking eyes for $1d4$ hours.
21–24	Uneuclidean Ruins: Non-Euclidean archways warp line-of-sight. Movement through the area is tripled, and missile attacks suffer a -4 penalty.
25–28	Chthonian Young: A giant, tentacled earth-burrower causing localized tremors. Challenge 4 (Str) to avoid being swallowed whole.
29–32	Sorcerer of the Void: A mad warlord wielding an artifact powered by a dying star; casts Phantasmal Killer as a 6th-level Caster.
33–36	Night-Gaunt Swarm: Shadowy, faceless winged beings attempt to grapple the party and fly them into the upper atmosphere.
37–40	Ghoulish Feast: $1d4+1$ rubbery-skinned Ghouls gnawing on the corpse of a dead sorcerer. One holds a scroll of alien spells.
41–44	Color Out of Space: An unearthly, luminescent vapor draining vitality. Lose $1d4$ Constitution points per round spent inside it.
45–48	Star-Spawn Idol: A jade idol depicting a sleeping tentacled god. Looking directly at it requires a Wisdom check or causes temporary paralysis.
49–52	The Hound of Tindalos: A predatory horror emerging from an angular corner (30° or sharp edge) to hunt down time-travelers or reality-warpers.
53–56	Flesh-Warped Beast: A displaced dire bear fused with fungal tendrils and extra limbs. High AC, high damage output.
57–60	Serpent-Folk Infiltrator: A disguised Serpent Man noble using illusion magic to manipulate local Scribe and Merchant guilds.
61–64	Blood-Moon Eclipse: The sky turns blood-red; all necromancy spells operate at +2 caster levels for the next hour.
65–68	Whispering Pit: A cavern entrance broadcasting psychic chatter. Characters who listen gain temporary spell slots or permanent madness.
69–72	Yithian Automaton: An ancient brass device left behind by the Great Race of Yith, recording environmental data and defending itself with light beams.
73–76	Desiccated Mummy: An ancient high priest of Yog-Sothoth preserved in resin, capable of casting high-tier illusion and gate magic.
77–80	Cthonian Spores: Spores fill the air; breathing them forces a Constitution check or causes green tendrils to burst from the skin.
81–84	Shantak Flight: A horse-headed, scaled flying monstrosity swoops down to carry off livestock or party mounts.
85–88	The Astral Portal: An unstable rift opening directly to the Cold Wastes of Kadath; freezing wind causes $2d6$ cold damage per round.
89–92	Formless Spawn: A black, shifting mass of protoplasm immune to bludgeoning damage; uses acid to melt armor and flesh.
93–96	Avatar of Nyarlathotep: A tall, dark stranger offering dark pacts, ancient knowledge, or powerful cursed weapons in exchange for human sacrifices.
97–00	Awakened Shoggoth: A massive, towering wall of eyes, mouths, and slime crushing everything in its path. Defeat is unlikely; escape is required.

Mechanical Notes for Castles & Crusades:

• Sanity Checks: Use standard Attribute Checks (Wisdom or Charisma) with a Challenge Class (CC) scaling from 10 + HD of the cosmic entity.

• Prime Attributes: Characters with Wisdom or Charisma as a Prime Attribute set their base target number to 12 when resisting cosmic horror; non-Primes use 18.