Spelljammer Monsters
Creatures of the void between worlds: star whales, space-going pirates, living ships and the horrors that hunt them. 141 monsters, grouped by the book they come from.
- MC7 Spelljammer Appendix I (52)
- MC9 Spelljammer Appendix II (52)
- Other sources (22)
- AD&D Adventures In Space (8)
- Legend of the Spelljammer (4)
- Dawn of the Overmind (1)
- MC5 Greyhawk Appendix (1)
- Monstrous Manual (1)
MC7 Spelljammer Appendix I
- Aartuk Star-shaped warrior plants who sail stolen ships between the worlds, aartuk treat war as holy art, spit stone pellets, and reproduce by turning their captives to jelly.
- Albari Oily-feathered bird-folk of the starways who live to spread chaos, albari use invisibility and illusions to wreck a ship one week and rescue it the next.
- Ancient Mariner Ghostly pirates of a long-dead race, ancient mariners sail phantom ships through the phlogiston, draining life with a chilling touch and turning their victims into shadowy crew.
- Argos A floating, hundred-eyed amoeba of the void with fanged pseudopods and a magical gaze, the argos lures prey into traps, swallows it whole and keeps the victims' tools.
- Astereater [Gazer Abomination] A stone-skinned, stalkless cousin of the gazer tyrants that floats among asteroids posing as one, then gulps passing travelers whole into a belly full of acid.
- Asteroid Spider A ten-legged, jet-black hunter of the asteroid belts that strings invisible miles-long webs between rocks, snaring ships, paralyzing crews and stealing their air.
- Blazozoid A sphere of living white fire sent across the void by a lonely star, the blazozoid sees mortals as fuel or ferries and detonates if it touches the flame-sea between worlds.
- Bred Shock Trooper Tall, green-haired warrior women remade by the void artisans into identical elite soldiers, bred shock troopers have scoured a thousand worlds and fight in berserk fury beside golem-like helots.
- Chattur Masked, wide-eyed little stowaways of the starways, part monkey and part rodent, whose presence brings a ship luck and whose departure warns of doom.
- Clockwork Swarm Rune-etched metal spiders from a dead star system that strip whole worlds to bare rock, killing every living thing in a ruthless drive to build more of themselves.
- Colossus A slow, simple, 60-foot giant adrift in the void between worlds, searching for a lost home it cannot describe, and able to pulp a ship with one lucky punch.
- Deck Ape Gliding ape-folk who hire on as sailors and marines aboard starships, deck apes fight with a blade in hand and foot and swoop through the gravity plane to board enemy hulls.
- DeGleash [Plasmoid] A swaying, cream-colored blob shaped like a bowling pin that booms terror before battle, stretches up to 100 feet, and can swallow and digest smaller foes whole.
- DelNoric [Plasmoid] A squat, leather-skinned plasmoid that shrugs off acid, shrieks loud enough to hurt, and keeps a whole belly of digestive acid ready to squirt at anyone in reach.
- Delphinid Playful three-eyed fish of the flame-sea, delphinids frolic around becalmed ships, rescue sailors who fall overboard and vanish the moment anyone tries to harm them.
- Dizantar Silent, spike-armored giants of the void who live to hunt down the blue-skinned merchants of starhelms, tracking their quarry with an unbreakable magical line.
- Esthetic A living, ornate starship grown by the void artisans as both home and work of art, which paralyzes enemy pilots with a mental scream before spearing their vessels.
- Focoid A nearly invisible chain of three jelly spheres that bends starlight into burning beams, setting rigging ablaze and roasting crews from thousands of yards away near bright stars.
- Fractine A tumbling, mirror-bright plane of folded space that drifts through the void, devouring life and magic, warping whatever it passes through, and reflecting harm back on anyone who strikes it.
- Furnace Golem A thinking three-ton iron giant with fire in its throat, able to crush foes in its fist, hurl boulders a sixth of a mile, and fly between worlds by eating magic items.
- Giant Space Hamster Bear-sized, golden, and absurdly fertile, the giant space hamster was bred by tinker gnomes to power their ships and has since spawned dozens of silly and occasionally lethal strains.
- Gravislayer A featureless ball of scarred flesh that turns its victims into miniature planets, the gravislayer lets falling asteroids crush starship crews and then feeds on the pulped remains.
- Grommam Copper-furred, kimono-wearing ape folk of starfaring forests, ruled by living demigods and given to painting their starships in wild, swaggering colors.
- Helm Leech A barnacle-shelled hull parasite that quietly siphons spells out of a starship's pilot, then hurls them at random whenever anything taps its stretch of hull.
- Infinity Vine A leafless green vine that feeds on air and light, the infinity vine can bury a starship in ten feet of growth within hours and quadruple its tonnage.
- Lumineaux Vast, nearly invisible mantas of living flame-sea that drape themselves over the gateways of crystal shells, sifting passing ships and quietly sipping the memories of their crews.
- Lutum A greedy blob of living clay that wears the face of a beautiful woman, worms its way into courts and starship crews, and smothers anyone who sees through the act.
- Misi Invisible feeders that live in dimensions beyond length, width and height, misi swarm starships to drink their magic, sabotaging spells and leaving vessels stranded in the void.
- Mortiss Light-eating colonial worms of the void between worlds that bore through ship hulls like termites, raise coral-like clay towers, and sting intruders into hours of poisonous delusion.
- Murderoid A living asteroid a hundred miles long that disguises itself as a paradise, then traps landing ships with stone, grease and earthquakes and devours them with mouths that open in the rock.
- Nay-Churr A mindless, drifting stomach that hoovers up anything in its path, the nay-churr can swallow whole starships intact, and killing it the wrong way blows everyone inside to pieces.
- Ontalak [Plasmoid] A colossal plasmoid that disguises itself as a derelict starship, a haunted house or a ghost ship, waiting for curious looters to step aboard its digestive hull.
- Phlog-Crawler A spider-shaped wisp of the rainbow flame-sea that drifts through the void, sucking the strength from lone travelers and exploding into fire if anyone tries to burn it.
- Plasman A towering figure of white-hot stones held together by an inner furnace, conjured by mad wizards and so tormented by its warring elements that it smashes everything, including its maker.
- Power Symbiont A tiny, fungus-like hitchhiker that drifts aboard starships, latches onto the strongest magic item it can find, and drinks it dry one charge at a time.
- Puffer A balloon-like drifter of the void that can sleep for decades, then land on a ship or asteroid as a fanged, scorpion-tailed killer hunting a host for its eggs.
- Q'nidar Crystal-hided void bats that drink warmth and radiance, chatting with passing starships through breath that sets their decks ablaze.
- Radiant Golem A towering black giant of star-forged ore that wants only friendship, the radiant golem cannot understand why every companion it adopts slowly withers in its deadly aura.
- Rastipede An eight-legged insectoid trader that looks like a centaur built from a beetle, the rastipede haggles its way across the void and can push a starhelm far beyond its modest spellcraft.
- Rock Hopper Owl-faced little nomads of the asteroid belts who pedal hand-built skiffs between drifting rocks, herding void scavengers and sometimes chasing a void whale for weeks.
- Rogue Moon A whale-sized spiny sphere that glows like a distant moon in the void between worlds, luring travelers close, then swelling tenfold to suck them onto its poison spikes.
- Slinker An eight-inch, neckless, birdlike scavenger of starport slums that flees from everything, until a cornered pack swarms one victim, or a stowaway colony quietly eats a ship's food and air.
- Space Mimic A star-speckled mimic of the void that disguises itself as debris or a scholar's desk, casts illusions, and isolates wizards to steal their spellbooks before eating them.
- Spacesea Giant Hairy, art-loving cousins of the stone giant who sail the void in galleons of solid rock, hurling ship-cracking boulders and patching their hulls with the same stones.
- Spiritjam The ghost of an evil starhelm caster that drifts through ship hulls to claw out its victims' minds, starting with the pilot and the captain.
- Survivor A stone-gray castaway pulled from the flame-sea after centuries adrift, who repays its rescuers by silently enslaving the crew one mind per day.
- Syllix Warlike worm-salamanders of the void who kidnap thinking beings to feed their blind starhelm-pilot young, then erupt from their homeworlds in waves of slaughter.
- Void Artisan Glittering, androgynous wanderers of the void who treat everything, war included, as an art form, and who once shattered their own homeworld chasing a masterpiece of destruction.
- Wiggle Frog-legged, gnome-faced reptilian spacefarers whose lost empire left them as hard-bargaining mercenary crews, while their stranded kin sank into swamp brigands and savage sea brutes.
- Wryback Boneless, rubbery little thieves with needle teeth and glowing eyes, wrybacks infest ship holds and warehouses, shrug off clubs, and spread from world to world as stowaways.
- Zard Blind, eight-legged gliding reptiles that drift through the void in swarms of up to a hundred, latch onto anything they echo off, and chew it to pieces.
- Zodar Identical, silent figures of living black obsidian, zodar wander the stars on unknowable missions, immune to magic, strong beyond titans, and able to bend reality with a single lifetime wish.
MC9 Spelljammer Appendix II
- Alchemy Plant An ordinary-looking shrub that turns itself to stone or steel when threatened and can transmute one substance into another, the alchemy plant is every alchemist's unreliable dream.
- Allura Reptilian emotion-eaters disguised as beautiful castaways, allura board passing starships, enslave the crew with charms, and steer them into terror until there is nothing left to feed on.
- Astro-Sphinx A mad, brass-scaled sphinx of the void with a goat-skull face that asks impossible riddles and answers every wrong guess with sleep gas, chain lightning and slaughter.
- Autognome A clanking, rouge-cheeked clockwork gnome built for exploring hostile worlds, the autognome follows orders with crushing literal-mindedness, until it inevitably malfunctions and does something worse.
- Bionoid Elves remade into living weapons for an ancient war, bionoids hide a bladed insect warrior inside a calm humanoid body, and a single crystal eye holds their soul.
- Bloodsac Silent, star-speckled blobs that drift out of the void onto starship decks, drain sailors of blood, then siphon away their memories through a tube in the skull.
- Buzzjewel Glittering, gem-eating insects of the void between worlds, buzzjewels swarm toward light, bite with poison when provoked, and leave a small gemstone when they die.
- Colonial Grell Arrogant hive-minded grell raiders crewing golden ships across the void, colonial grell spear prey with tentacle blades and lightning lances and see every other race as food.
- Constellate A living constellation that gossips across the heavens, and that, when called down by certain void-wandering clans, can crush whole planets beneath its starry bulk.
- Contemplator A statue-still gray giant brooding on a lonely asteroid, who entombs visitors in stone and sips away their minds in search of the answer that might end the universe.
- Dreamslayer An astral parasite that slips into the dreams of sleeping void travelers, butchers the people they love, then strips away the dreamer's mind and steals the body for a final wild binge.
- Dweomerborn A ghostly, taloned phantom born from the magical exhaust of starships, which climbs aboard along the ship's wake to drain spells and enchanted items dry.
- Fal Enormous, gentle slug-sages who hollow out lifeless asteroids into book-crammed lairs and will answer any question, eventually, for a worthy gift.
- Feesu Giant glowing void moths that drift between worlds in swarms, steal a ship's air when they leave, and light up a beacon that draws pirates and monsters.
- Firebird A blazing, eagle-shaped raptor of the void between worlds that dives on starships, sets their sails alight, and torches its way through hulls to pluck crewmen like mice.
- Firelich A would-be lich who exploded in the flame-sea and became a shrieking comet of undead fire, hurling itself at starships in a mad search for something to put it out.
- Flowfiend Evil castaways remade by a dark power in the flame-sea into four-armed, regenerating brutes, flowfiends raid passing starships for meat and for fresh converts to their master's cause.
- Gadabout A living winged suit grown by void-faring elves, the gadabout wraps its wearer in a self-renewing bubble of air and carries him across the empty dark between ships.
- Gammaroid A snapping turtle the size of a mountain that drifts in the void disguised as an asteroid, then spins into a whirling, fiery buzzsaw to slice ships in half.
- Gonn Planet-sized singing sages who drift through the void in choirs of eight, the gonn heal and protect the innocent, but their war songs can shatter ships and flatten armies.
- Gossamer Drifting shoals of luminous void jellyfish, gossamers sting small prey with paralytic tentacles, while their colossal noble cousins hunt whole starships with hawser-length spiked lashes.
- Grav Squat, ultra-dense void miners who can make objects weightless, gravs prefer to float troublemakers harmlessly away, though any foe they drop from the sky falls hard.
- Great Dreamer A colossal three-eyed void whale swimming inside its own ocean between the stars, the great dreamer guards all cetacean life and can swallow a starship whole.
- Greatswan Snow-white war birds bred by void-faring elves, greatswans carry lancers into screaming power dives, spot invisible intruders, and break foes' ranks with hammering wings.
- Gullion Gaudy space-adapted seagulls that ride starships from world to world, gullions steal dinners, waste precious air, and in a hungry enough flock will mob a sailor and eat him.
- Insectare Hooded, green-skinned elf-insect hybrids with whip-like antennae, the insectare scheme in secret to dominate the spaceways by stealing magic and turning other races against each other.
- Lhee Winged space dogs with clever human hands, lhee chase comets and starships through the void, pestering sailors with spells and pranks that range from silly to lethal.
- Mercurial Slime A drifting blob of living quicksilver acid that hunts ships through the void by sound and light, dissolving flesh, weapons and hulls and occasionally splitting in two as it feeds.
- Meteorspawn A living boulder hundreds of feet across that grazes on asteroids, ignores ships until badly hurt, and then fires its waste out as meteors that punch through hulls.
- Monitor Incorruptible celestial patrol-officers of the void between worlds, golden winged centaurs or silver pegasi who fight evil with flaming swords and never, ever compromise.
- Moon Dragon An arrogant evil dragon of lunar caverns whose strength and alignment wax and wane with its color, and whose black frost seals victims in airless ice.
- Pristatic A tiny gnomish being floating cross-legged inside a ball of swirling rainbow light on the flame-sea, harmless and chatty until pushed, when its sphere becomes a prismatic wall.
- Silatic Quivering metal-eating blobs that drift through the void between worlds, stow away on starship hulls, and can wreck a city's economy by breeding in its treasury.
- Skullbird An oily black carrion bird of the void between worlds whose skull-like head and habit of perching on a ship's masts make it the most feared omen a crew can see.
- Sleek A silver-furred, ermine-like shipboard hunter that senses vital spots with its antennae, opens arteries with a bite, and extorts tribute from crews that neglect it.
- Sluk A near-invisible weed of the void between worlds that snares passing ships like a sargasso, strangles spellcasters and drinks the magic from hulls, helms and enchanted gear.
- Space Owl Brilliant, long-winded owls prized as starship navigators, who would rather psychoanalyze an attacker than fight it, and vanish behind illusions when talk fails.
- Space Swine Winged, one-horned tracking boars bred by merchant folk of the void, able to follow a scent across thousands of miles and dive-bomb foes with a rising squeal.
- Spirit Warrior A colossal undead insect grown from an egg, bonded to its rider's mind and piloted from a chamber in its chest, built by elven mages as a living war machine.
- Star Orc Disciplined, articulate descendants of orcs who lost a war in the void, star orcs train for one holy purpose: to drive every groundling race out of space.
- Star Selkie Gentle, beautiful shapechangers who become armored, bullet-shaped hunters in the void, ramming prey and draining it through ten lamprey-mouthed tentacles.
- Starfly Plant A drifting, butterfly-winged fruit of the void that starship crews greet as a lucky, delicious omen, and the seed of a comet-riding tree that can grow into a living world.
- Stargazer A gem-crusted asteroid lizard that poses as a glittering mineral vein, then fires twin lightning bolts from its eyes at anyone greedy enough to come close.
- Stellar Dragon A colossal, gem-crusted philosopher of the flame-sea that literally eats knowledge, crystallizing it into priceless jewels, and defends itself with a mouth that opens onto annihilation.
- Stellar Undead Dead star-sailors animated by negative energy, stellar undead drift on wreckage posing as castaways, waiting for a rescuing crew to bring warm blood aboard.
- Sun Dragon A playful, good-hearted dragon that frolics on the surfaces of suns, spits delayed-blast fireballs, and leaves behind a sphere of annihilation when it dies.
- Tradewaddler Fanged, telepathic penguin-folk merchants of the void who talk customers into submission in pairs and pay hired muscle to keep swinging, all while dreaming of beating their rivals.
- Void Rover Silk-clad, smooth-talking rovers of the void between worlds, the void rovers salvage wrecks, run cons and tell fortunes, and play dead rather than fight fair.
- Witchlight Marauder Living doomsday weapons bred by orc shamans to strip elven worlds bare, witchlight marauders devour everything from forests to moons and breed new killers as they feed.
- Xixchil Mantis-like surgeons and artisans who sculpt their own bodies into weapons, brew poisons tailored to a single victim, and will happily reshape clients in ways they never wanted.
- Yitsan Its eggs look exactly like gold coins, so sailors carry them aboard in treasure chests, until a blind, ten-foot lizard horror with a bladed tail hatches in the hold.
- Zurchin A bright, spiny star urchin that grazes asteroid reefs in peace until disturbed, then fires venomous quills that can stop a heart or seed a body with hungry eggs.
Other sources
- Air Dragon The ghostly afterlife of a great wyrm from a vast air world: a living diamond of shaped air that hurls objects with violent winds and is sustained by the love of its kin.
- Anadian Halfling Dark-skinned halflings of a sun-scorched inner planet, these extremists either love or loathe everything, and their southern clans have fought each other into near anarchy.
- Anadjiin A brilliant, armored reptilian predator with all-seeing insect eyes and a death-lock bite, the anadjiin hunts only the most plentiful prey, which on other worlds usually means people.
- Archlich A good-hearted wizard, priest or bard who chose undeath to guard a cause, the archlich wields a lich's power without its malice, and returns from destruction unless its soul-object is broken.
- Bosk Giant Grass-haired, green-skinned swamp giants who act first and never think later, bosks guard their bogs with clubs, fists, and a stomach-acid spray that leaves foes reeling.
- Deathgaze Tyrant [Undead Gazer] A rotting, mold-crusted gazer tyrant raised as a tireless undead guardian, still firing the eyes it has left with deadly skill and obeying only its maker's last orders.
- Flow Barnacle Mindless, head-sized shellfish that drift through the flame-sea, clamp onto ships and travelers with a near-unbreakable grip, and slowly gnaw and suck their way inward.
- Gargantuan Praying Mantis A brave, brainless, house-sized ambush hunter that hides in plain sight, grabs passing prey in bristling forelegs and bites, refusing to retreat until it is half dead.
- Helian Muscular beings of living flame born from the souls of fire-worshippers, helians hurl globs of sunfire and crush foes in burning embraces, yet fight only when threatened.
- Hummerfly A gentle, vanilla-scented insect that feeds on sound, hums like a lute, teleports when it flies fast enough, and makes a surprisingly reliable courier between worlds.
- Lavaworm A two-mouthed worm of living, half-molten rock, the lavaworm lunges at anything cooler than itself with searing bites and blinding sulfur clouds, and breeds by eating hot hosts alive.
- Oortling Pallid, big-brained comet dwellers bred like cattle by mind reavers, a once-gifted people now too broken to do more than cower until they are eaten.
- Plainsjan Imp-like desert pests that swarm their prey from every side, plainsjan carry a dizzying, stacking venom and claws that leave wounds bleeding long after the fight.
- Shadowsponge [Air Stealer] A drifting gray mass of air sacs that smells a ship's atmosphere from miles off, swoops in to soak it up, and smothers anyone it wraps in its rubbery bulk.
- Spaceworm Pale, slug-like swarmers of the void that gnaw furrows through hulls and flesh, with a taste for eyes that leaves whole crews blind and lost among the stars.
- Swamp Giant Brighter, bearded cousins of the bosk giant, swamp giants live in towering treetop villages, snare intruders in living vines and finish them with storms of spears.
- Thagar Gazer Eater [Grimgobbler] A rubbery, many-necked sphere of the void that hunts gazer tyrants as its favorite meal, biting off eyestalks while shrugging off nearly every spell aimed at its mind or body.
- Tinkerer [Giant Bubble] A floating, six-armed ball of curiosity that drifts between starships stealing, improving and rebuilding every gadget it can grab, and sometimes the crew too.
- Undead Old Master [Web-Eel Slaver] Aging web-eel slaver wizards who cheat their fate as brood-mothers by seizing undeath, undead old masters are silent, paranoid predators whose chilling touch locks victims in place.
- Watcher Serpent Dragon-headed space serpents that fly between worlds unaided, watcher serpents drift in to observe battles and disasters, and will tow your ship or rescue you for a price.
- Water-World Fish Ravenous, glowing ridgebacked fish of an ocean-covered world whose bites tear away flesh, and whose blood frenzies draw ever-growing swarms to the wounded.
- Wonderseeker [Human] Bored, foppish human adventurers who drift between the stars treating everyone else's lives as their game board, as likely to rescue you as to ruin you.
AD&D Adventures In Space
- Dracon Herd-minded dragon-centaurs newly arrived among the stars, bound by formal dueling codes, led by mystical genealogy, and sworn enemies of the web-eel slavers.
- Ephemeral Dusty gray ghosts of those who died in the flame-sea between worlds, who drain the minds of starship crews to steal living bodies for the voyage home.
- Hippo-Headed Mercenary Hulking, hippo-headed soldiers for hire who love guns, rank and orders above all else, wade into brawls for fun and fight to the death once steel is drawn.
- Radiant Dragon The largest of the void-dwelling dragons, a proud serpentine giant that crushes ships in its coils, fires unerring pulses of force, and flies between worlds under its own divine power.
- Void Kraken A ship-sized squid of the void whose great central tentacle crushes hulls while a ring of venomous sentries paralyzes the crew for later.
- Void Scavenger One-eyed fish of the void that ride in a ship's air envelope eating its garbage, void scavengers range from harmless air-thieves to sly man-eaters that stalk the crew.
- Void Sprite Curious, flickering orbs of living fire that drift near suns, zip through starships setting everything ablaze, and sometimes leave an ioun stone behind when they die.
- Void Whale Mouthless, sun-drinking whales of the void, so huge they carry their own air and gravity, gentle until threatened and able to blind whole ship crews with their eyes.
Legend of the Spelljammer
- Kasharin [Gazer Tyrant] Charred, stalkless gazer tyrants caught between life and death by a plague called the Blinding Rot, whose single surviving eye either charms or kills outright.
- Master Lich A leathery lich empowered by pacts with dark extradimensional powers, the master lich regenerates endlessly and rules an army of undead that see and hear for him, until the bill comes due.
- Shivak Leathery, organless servitors grown from the walls of the Great Starship, which swarm trespassers, eat starhelms to reproduce, and forge a guardian from a dead captain's fears.
- Void Spider Stilt-legged spider folk born in the open void, void spiders see every other race as groundbound trespassers and treat the known star systems as a pantry and a quarry.
Dawn of the Overmind
- Voor Larva Eight-foot skeletal insects hatched from ancient seed-dust drifting in the void, voor larvae hunt mind reavers above all else, regenerate from near death and shriek with a disabling trill.
MC5 Greyhawk Appendix
- Plasmoid Overview Shapeless, endlessly curious ooze-folk who can grow limbs at will, eat nearly anything, talk for hours about nothing, and prove the most loyal friends a void traveler could ask for.
Monstrous Manual
- Vorthani Pirate Skeletal raiders of the void who hunt living elven ships, then slip whole vessels into the Astral Plane to vanish and ambush the shipping lanes at will.