Theronauts

Theronauts

One-shot D&D session guides — hooks, encounters, and boss fights ready to run at the table.

41 SESSIONS
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The Show Must Go On

One-Shot · 6 Players · Level 5 · ~3–3.5 Hours · Greek Mythology Setting

A god wants to enjoy an uninterrupted night at the theater, and a jealous satyr captain has other plans. The party must keep the show running — and the audience none the wiser — while chaos builds backstage toward a very public finale.

Maenad Midnight

A level 6 civic escort through a god-touched midnight riot.

Escort a sober prince through a Dionysian riot without killing the god-touched revelers.

Riddles at the Peak

One-Shot · 4–5 Players · Level 6 · ~3.5 Hours · Greek Mythology

An ancient presence has awakened at the summit of Mount Theron, and ships are paying the price. To pass, the party will need to satisfy its hunger for wit — or become its next meal.

The Laurels of Olympia

One-Shot · 6 Players · Level 6 · ~3–3.5 Hours · Olympia Stadium / Greek Mythology

Invited through the mists to compete in Olympia’s living Games, the party arrives at the colosseum gates among rival teams of leonins, satyrs, and horned brutes. Glory is optional — keeping the sacred sand intact when the closing ceremony goes wrong is not.

The Weight of Hope

One-Shot · 6 Players · Level 6 · ~3.5 Hours · Greek Mythology

Centuries ago, a single opened jar loosed the world's sorrows — and the one who opened it has been trapped with her guilt ever since. The party must decide whether to conquer her or simply bear witness, before whatever escapes next cannot be put back.

The Mill of Midas

For 6 level 7 PCs, 3 to 3.5 hours, 3 encounters. Cure the king if possible.

Stop a golden contagion spreading from a king's touch through a market quarter.

The Sibyl's Last Page

A burning oracle-run through the caves of Cumae.

Race a burning prophecy through Cumae's caves before Rome's future turns to ash.

Arena of the Labors

One-Shot · 6 Players · Level 8 · ~3–3.5 Hours · Stadium Colosseum · Six Labor Waves

Six gates on sacred sand: lion, hydra, flesh-eating mares, Stymphalian flock, Erymanthian boar, and a pillar-shaking bull — echoes of the Twelve Labors, with no demigod to steal the glory.

Bellerophon's Bargain

For 6 level 8 PCs, 3 to 3.5 hours, 3 encounters. Drive off the Chimera; pride is the trap.

Ride a half-tamed Pegasus to drive off a Chimera without claiming the kill for pride.

Judgment at Delphi

For 6 level 8 PCs, 3 to 3.5 hours, 3 encounters. Do not kill Apollo.

Prove a false oracle before Apollo's Python-spawn seals the temple in coils.

Karkinos at the Keel

One-Shot · 6 Players · Level 8 · ~3–3.5 Hours · Single Trireme Sea

Blood-chum has driven a sacred crab of Poseidon mad, and the only hull on the board is yours. Calm the shoal, recruit a nymph’s mercy — then sound the true feast-horn when Karkinos climbs the ram.

Lightning on Dead Oars

One-Shot · 6 Players · Level 8 · ~3–3.5 Hours · Trireme / Ghost Galley

A storm-cursed galley runs silent under blue lightning, its dead still rowing. Boarders of bone and empty storm-armor want a new crew — and the only way out is through the admiral who will not admit he is dead.

Sinbad and the Roc of Serendib

One-Shot · 6 Players · Level 8 · ~3–3.5 Hours · Greek–Arabian Crossover

Mist opens onto a shore where two seas argue under one sky. Sinbad the Sailor is already waiting — with a noon-bright diamond, a missing crew, and a mountain-bird that believes a false egg is her child.

Stymphalian Storm

For 6 level 8 PCs, 3 to 3.5 hours, 3 encounters. Enc. 3 is Hard.

Clear a lake of bronze-beaked birds using thunder, nets, and bad ideas.

The Atlantean Toll

One-Shot · 6 Players · Level 8 · ~3–3.5 Hours · Trireme Boarding

Fish-folk reavers demand a sea-tax Poseidon never blessed, and their galley is already alongside. Authenticate the bronze seal — or meet the deep-beast that collects for false kings.

The Boar of Calydon

A level 8 wilderness boss-hunt for six Theronauts.

Join a prideful hunt that turns on itself when the quarry starts choosing victims.

The Bronze Heart of Crete

One-Shot · 6 Players · Level 8 · Greek Mythology

A bronze colossus built to guard Crete has turned on the people it once protected. To stop it without destroying it forever, someone will have to climb inside and reach its beating heart.

The Clashing Gates

A boarding battle between rocks that hate ships.

Time a trireme run through the Symplegades as Titan-kin board from both rocks.

The Debt of Antaeus

A level 8 borderland boss-hunt against earthbound strength.

Survive a wrestling cult that cannot lose while their giant's feet touch earth.

The Ferry Overfull

For 6 level 8 PCs, 3 to 3.5 hours, 3 encounters. Charon is not a kill target.

Hold Charon's barge steady while too many living souls try to buy a one-way crossing.

The Ford of Twin Spears

One-Shot · 6 Players · Level 8 · ~3–3.5 Hours · Amazon–Spartan Border Crisis

A sacred ford stands hours from open war between Amazon hunters and a Spartan column. As envoys carrying a twin-faced seal, the party must choose a side — or prove both camps are being played before dusk makes the choice for them.

The Isle of Stonegaze

One-Shot · Greek Mythology · Boss: Euryale the Gorgon

A cursed island waits at the end of a dangerous voyage, guarded by something whose gaze turns flesh to stone. The party must gather allies and ancient tools before they dare look it in the eye.

The Kraken's Toll

One-Shot · 6 Players · Level 8 · ~3.5 Hours · Greek Mythology

A simple courier run across the Aegean turns into a debt the sea itself intends to collect. As harpies, sirens, and something vast beneath the waves converge, the party must decide what they're willing to give up to survive the crossing.

The Shattered Pact of Ironstone Hills

One-Shot · 6 Players · Level 8 · ~3.5 Hours · Greek Mythology

A centuries-old truce between two proud peoples is unraveling, and both sides are ready for war. Someone has been quietly feeding the flames — and the party will have to figure out who before the Ironstone Hills burn.

The Weeping Maw

3.5-Hour Oneshot · 6 Players · Level 8 · Wilderness Crawl → Boss Fight

Travelers along the forest road have been vanishing, and the trail leads deep into a boggy wilderness few return from. The party will need allies — and fire — before they reach whatever waits in the marsh's yawning cave mouth.

The Wilting Court

One-Shot · 6 Players · Level 8 · Greek Mythology · ~3.5 Hours

A sisterhood of nymphs has turned violent after their sacred grove was destroyed, and their grief is being fed by something far darker than sorrow. The party must reach the source of the curse before the whole vale is lost to it.

The Witch of Aeaea

One-Shot · 6 Players · Level 8 · Greek Mythology

Every ship that sails too close to this island vanishes — except for the strange animals that swim away from it. Armed with a rare antidote to a witch's magic, the party must decide how to end her curse before they join her menagerie.

Weave of Arachne

A stealth descent into a temple where fate is woven wrong.

Infiltrate a loom-temple where a spider-queen is rewriting mortal fates in thread.

Wings Over the Wine-Dark Sea

One-Shot · 6 Players · Level 8 · ~3–3.5 Hours · Trireme Naval

Harpies blot the sail and the water begins to sing. Somewhere in the fog, a jelly-crowned mother of sirens is hunting ships — and the party’s deck is the only stage that matters.

Apples of the West

A sunset orchard heist at the edge of Oceanus.

Steal three golden apples from the Hesperides without waking Ladon for good.

The Fleece of Colchis

One-Shot · 6 Players · Level 10 · ~3–3.5 Hours · Colchis Heist · Steal the Golden Fleece

Hera warns that Aeëtes will sow war from the sacred oak. Slip Aea’s harbor, recruit Medea, open the seals of Ares, and lift the Golden Fleece from under a sleepless dragon before the Spartoi rise.

The Hot Gates

One-Shot · 6 Players · Level 10 · ~3–3.5 Hours · Thermopylae · Hold the Pass

Mist opens onto a cliff-tight pass where King Leonidas braces against Titan-kin and leonin hordes. Hold the throat, parley with the warlord, then bleed for Ares’s favor until the war-god answers — and ends the slaughter himself.

The Unquiet Asphodel

One-Shot · 6 Players · Level 10 · ~3–3.5 Hours · Underworld Mystery

The dead are rising with stolen breath, and the ferry into the Underworld waits just beyond the mist. Something in the Queen’s garden is rewriting the laws of death — and Olympus has not been told.

Three Throats at the Gate

One-Shot · 6 Players · Level 10 · ~3–3.5 Hours · Underworld Gate · Subdue Cerberus

The Gate-hound raves with a Stygian thorn in his paw — kill him and the dead climb. Recruit Orpheus, claim the triple collars, and stack honey, song, and chains until three throats sleep.

Troy's Hollow Gift

A level 10 siege infiltration about what victory is allowed to cost.

Plant (or sabotage) a wooden colossus inside a siege without becoming the betrayal.

Chains on Caucasus

A storm-climb to the titan's iron crag.

Free (or refuse to free) Prometheus while eagle-cultists try to keep the wound open.

Phaethon's Reins

A level 11 aerial control mission on a runaway sun-chariot.

Seize control of a runaway sun-chariot before it scorches three mortal cities.

Mother of the Deep Coil

One-Shot · 6 Players · Level 12 · ~3–3.5 Hours · 2 Encounters · Echidna Lair

The Mother of Monsters has woken in her own nest beneath Cilicia. Clear the outer brood, descend into Arima, and endure a rising three-phase battle as she calls her children from the dark.

The Hundredfold Binding

One-Shot · 6 Players · Level 12 · ~3–3.5 Hours · Rhodes Sunforge

Four exile sons of Helios have returned to Rhodes to bind a Hundred-Handed One beneath the Sunforge. Free the giant, shame the jealous noon — and hear a vow that waits for a greater threat.

Victory Unchained

Campaign Finale · 6 Players · Level 12 · ~4 Hours · 2 Encounters · Mount Etna

Free Nike from Etna’s root-forge — and loosen Typhon’s chains with her. Blessing, horn, and every ally your campaign has earned stand between the Theronauts and a storm that would end the age.


Completed Adventures

No sessions match these tags.

The Labyrinth of the Unshapen

One-Shot · 6 Players · Level 8 · ~3.5 Hours · Greek Mythology Themed

A disgraced scholar is two days from completing a machine that will reshape every magical beast for a hundred miles around. The party must cross his twisted menagerie and reach his underground sanctum before his work — and his true nature — are unleashed.

The Wrath of Pyrakmon

One-Shot · 6 Players · Level 8 · Greek Mythology Setting · 3.5 Hours

A merchant's crew has vanished into the lair of a vengeful cyclops, along with a seal that carries more power than she let on. Between a petrifying guardian and a giant with an appetite for wine, the party will need more than just their swords to get everyone out alive.