D1 Castle Random Encounters

D&D 5e · 100 scenarios · Roll d100 → roll D1

A complete D&D 5e random encounter table for castle scenes. Roll a d100 to pick a set, then roll a D1 to pick a scenario within that set — 100 unique D&D encounter scenarios in total. Every scenario is system-neutral and runs on either the 2014 Player's Handbook or the 2024 D&D revision. Pair each scenario with a stat block from our D&D monsters catalogue and you have a session-ready encounter in under a minute.

How to roll this table

When the party enters a castle, roll a d100.
The result (1–100) is your scenario. Read it out and run with it.

The D1 Castle encounter table

d100 = 1

A cat wanders into a forgotten cellar. Following it, you discover an old alchemist’s lab full of forgotten potions and notes.

d100 = 2

A group of 6 peasants are talking about how they were robbed by brigands. They are worried that they'll be caught and hung by the local lord and his soldiers. The players can help them out or not.

d100 = 3

A group of women are sitting in the hall, singing to each other. They stop as soon as they see the players and scowl at them.

d100 = 4

As the adventurers delve into the bowels of the castle’s wine cellar, where ancient casks rotted into ruin, they disturb 2d10 vine-wreathed zombies whose withered forms bear witness to the deadly fungal plague escaping every yawning barrel. Amidst this melee of rotting, fungus-draped terrors, players may find hidden passages behind the casks leading to safe havens of mirthful sanctuary or sinister, sacred chambers bearing horrible, writhing plant glyphs that foretell the story of an ancestor’s vile communion with a dark, sylvan entity that turned revelry into rot.

d100 = 5

4d8 chickens have escaped from the coop and are wreaking havoc in the royal gardens. The head gardener pleads for help, warning that the queen will be furious if her prized roses are damaged.

d100 = 6

A worn rug in the great hall hides a trapdoor leading to an old armory.

d100 = 7

A group of 2d6 nobles are walking down the hall. They are on their way to have dinner with the King.

d100 = 8

In the castle’s garden, they find a grieving queen mourning her loved one. She seeks to build a memorial but faces opposition from traditionalists. The players must mediate and find a compromise to honor the queen's wishes without dishonoring tradition.

d100 = 9

A group of 2d6 rogues are robbing a merchant cart. They will try to ambush players if they get too close.

d100 = 10

Hidden in a crumbling servant’s quarters, the adventurers find an enchanted broom persistently sweeping dust, animated by an obsessive compulsion. 1d6 diminutive dust mephits accompany it, shrieking in petulant fury at any trespassers. Reclaiming the real broom from within a mountainous pile and performing the spell inscribed in a hidden text slab can calm the constructs, alluding to a worker’s rebellion long suppressed.

d100 = 11

The castle’s famed architect is accused of intentionally building a structural fault for future sabotage. The players must scrutinize the plans and diplomatically negotiate with the architect, securing the castle’s safety and the architect's loyalty.

d100 = 12

A group of 6 peasants are talking about how they were robbed by brigands. They are worried that they'll be caught and hung by the local lord and his soldiers. The players can help them out or not.

d100 = 13

A single Gnome, who is rolling what looks like a small barrel, is walking down the hall. The gnome ignores the players unless they speak with him.

d100 = 14

The party comes across a group of bandits. They are trying to steal something from the castle and will fight the party if they are discovered.

d100 = 15

One of the castle’s gargoyles appears to be slightly out of place. Upon closer inspection, you find that it can be moved to reveal a hidden compartment with an old journal.

d100 = 16

A corridor lined with paintings of past nobility reveals itself. The eyes of those immortalized in art follow your every move. Suddenly, the figures within the canvases step out, their frames becoming fluid as they confront you. Navigating this living gallery, where each frame presents a different historical challenge or riddle, becomes imperative to find the hidden door to the next room.

d100 = 17

The players hear a man screaming on the other end of a long hallway. When they reach him, they'll find him trapped inside a room with no doors or windows. He'll beg the players to save him from 'the beast'. When they enter the room, they'll find no one there except a large panther that has been trained to attack on command.

d100 = 18

A music room filled with self-playing instruments that require gentle guidance to harmonize. Players must conduct the instruments carefully to avoid cacophony.

d100 = 19

A group of men and women are gathered around an elderly woman, who is telling them stories about the old days when she was fighting goblins and ogres in the north with her husband and his friends. She's talking about how brave her husband was and how kind all his friends were (even though she's never met any of his friends).

d100 = 20

Ascending the winding staircases, adventurers may be bombarded by 2d8 mischief-loving imps, cackling with glee as they hurl debris and illusions at the party. At the top of the stairs, Keeper Arnulfus, a decrepit librarian with a rotted flesh fetish, guards forbidden tomes. Should the adventurers wish to gain knowledge, they must outwit the cunning imps and navigate Arnulfus’s insidious traps and puzzles.

d100 = 21

Deep in the alchemist’s lab, four mutated monstrosities, hybrids of failed experiments, lunge with acidic blood. These aberrations hold secrets of past experiments that could turn the tide in your favor if carefully extracted. Missteps lead to an explosive result.

d100 = 22

A group of men are standing in the hallway, singing and drinking. They will not pay attention to anything else until they finish their drinking song.

d100 = 23

Players descend into an underground crypt, where oppressive silence masks the sorrow of countless generations. As they light torches, the dance of shadows reveals a chilling scene: 1d8+6 zombies clawing their way out of long-sealed sarcophagi, animated by a cursed bloodline feud. Finding an ancient tome that details the curse, players can break it via an involved sealing ritual that requires them to relive the traumatic final moments of the feud. If ignored, the zombies periodically repopulate, causing unexpected attacks.

d100 = 24

A man is sitting on a bench, waiting for someone. He will offer players information if they buy him a drink. If they do so, he will tell them some information, then try to rob them. He is an experienced thief and has a +2 bonus to his roll when attempting to pickpocket or steal from PC's purses.

d100 = 25

An old woman is angrily waving an empty chicken coop. 4d4 thieving cats are to blame, and she is willing to offer homemade remedies in exchange for their capture.

d100 = 26

d100 = 27

A group of merchants are gathered around a wagon. They are discussing what they are going to sell and what is the best price. They are surrounded by baskets and sacks full of goods.

d100 = 28

d100 = 29

Two guards discuss shifts and duties, pausing to tighten their cloaks against the wind.

d100 = 30

4d8 chickens have escaped from the coop and are wreaking havoc in the royal gardens. The head gardener pleads for help, warning that the queen will be furious if her prized roses are damaged.

d100 = 31

A group of guards take a break in their room. They eat some food and drink some ale. The guards know the noise curfew is in effect

d100 = 32

A scribe carefully copies a manuscript in his cell, the flickering candlelight casting eerie shadows on the walls.

d100 = 33

A visiting dwarf king demands reparations for an ancient slight against his clan. The players must navigate complex diplomacy, ensuring the dwarf king’s satisfaction without bankrupting the kingdom.

d100 = 34

Players hear a woman screaming. The sound comes from a room. The door is open. The room is empty except for a mirror in the corner. The mirror is shattered.

d100 = 35

A group of dwarves are polishing the marble floors. They are singing an old dwarven drinking song.

d100 = 36

A dining hall where the tables and chairs rearrange themselves to avoid clutter. Players must be swift or risk losing their place settings.

d100 = 37

A grand, imposing library holds centuries of knowledge, thick with dust and cobwebs. Here, players encounter 2d4 animated books that seek to share tragic love stories or blood-curdling tales of betrayal. Harm them, and an enraged ghostly librarian appears to defend her precious collections.

d100 = 38

Players hear a man arguing with himself over something that happened in his past. He is clearly upset about it and keeps reliving the events over and over again in his mind. He keeps saying, 'I should have done this! I should have done that! I should have...' and he repeats it over and over again.

d100 = 39

Upon entering the dining hall, you notice the grandiose table set for a feast, the platters filled with sumptuous, illusionary delights. But beware, for 1d6+2 shadowy figures, remnants of a forgotten banquet, linger at the edges of reality. Lord Cedric, a once-proud king turned spectral host, steps forward, demanding the party partake in the feast or face his eternal wrath. However, consuming the illusory food will induce a deep, magical stupor, rendering the party vulnerable to the castle's other dangers.

d100 = 40

You hear two guards talking about the strange dreams they have been having. One of the guards claims that he was "swallowed" by a great dragon's mouth. The other guard claims that he was surrounded by flickering shadows that tried to devour him.

d100 = 41

Ceilings leak spectral water enchanted by murdered servants left unavenged.

d100 = 42

A man named Bester stumbles past you, bleeding from a huge gash on his arm. He says he was attacked by a pack of wolves in the forest and was rescued by some of the men at the gate.

d100 = 43

An aged and magical war room’s walls are cracked and singed. Here, the souls of 2d6 tacticians, clutching at phantom command tables, groan from shattered dreams of conquest. Discovering their lost battle maps and executing their final plans will free the spirits; players face difficult strategic decisions with moral consequences. Failure plunges the room into dynamic but despairing illusions of war.

d100 = 44

A mystical fountain that changes color based on the emotions of nearby players. Maintaining a serene atmosphere is crucial to unlocking its secrets.

d100 = 45

In the castle’s tower room lingers 3d6 elven brigands who revere the castle’s tragic sorrows and loathe outsiders. Negotiating safe passage requires sharing titillating tales of ancient lore, combat deemed secondary in their eyes due to their secretive nature.

d100 = 46

The guard barracks filled with enchanted equipment arranged in codes. Players need to piece together workload rotations, unlocking strategic locations.

d100 = 47

Secret passages hold spectral lovers from bygone courts whispering secrets.

d100 = 48

An ambitious young squire runs into you while carrying an absurdly large stack of old parchments. Help him deliver them, and he spills some interesting gossip about a secret conspiracy involving the castle's duke. Refuse, and you'll end up stepping on one, teleporting you randomly within the castle.

d100 = 49

A group of 2d4 dwarven soldiers are standing guard, prepared for an attack.

d100 = 50

A group of men and women are gathered around a table, drinking and discussing the recent events in the kingdom. They seem to be in a heated debate.

d100 = 51

A group of 1d4+4 men are looking for work. They are trying to find something to do for a few weeks or months until something better comes along. The men are old and not very strong.

d100 = 52

The castle’s grand ballroom, normally a place of revelry and celebration, has fallen eerily silent. Sir Alaric explains that a masquerade ball was disrupted by an uninvited guest—Varek. The adventurers must navigate through a sea of illusions, dancing phantoms, and enchanted mirrors that conceal Varek's latest ploy. They must gather clues and unmask agents of Varek before a dreadful curse consumes the entire ballroom.

d100 = 53

Within the castle’s grand armory, latent magic in each weapon awakens, as 3d6 spectral blacksmiths rise from their eternal forges. These ethereal craftspeople either curse intruders or forge uniquely potent weapons. Successfully navigating this complex encounter offers enhancements that are crucial for unraveling the castle’s dark mysteries.

d100 = 54

with eyes that burn like molten gold. Each bite injects a lethal curse, transforming gold into a heavy burden. Only those with pure intentions can navigate this serpentine maze to uncover the encrypted lore hidden within the treasure itself.

d100 = 55

The old wizard's tower has been abandoned, though it looks like it was used recently. When the players enter, they'll see that the wizard has left behind a magic mirror that shows events from the past and future.

d100 = 56

A group of men is seen playing cards in a room in the castle. They are gambling. If players interrupt, they will attack.

d100 = 57

The grand bridge, perennially storm-wracked, now guarded by 2d4 gargantuan raven familiars, becomes an unpredictable gamble. Baron Rhinehart, a fallen diplomat ghost, extorts crossing tolls in metaphysical favors or ancient coins. Lightning strikes randomly, embedding forgotten sigils that unveil momentarily shifting truths or malevolent forces.

d100 = 58

A group of peasants are arguing about their names.

d100 = 59

A haunted armory with spectral knights. Each armor piece needs different elemental magics to be subdued, requiring coordinated attack and defense strategies by the party.

d100 = 60

A strange map has been carved into the walls of one of the chambers. Investigating will reveal a secret entrance to a hidden dungeon.

d100 = 61

The party sees a man in black robes. He is carrying a large sack over his shoulder. As the party draws closer, the man begins to run. The man is a thief who will attempt to steal from any player character who is not carrying a weapon. He will attempt to flee if he is outnumbered or if he is wounded.

d100 = 62

A group of 1d8+3 orcs attack!

d100 = 63

The castle’s war room carries ghastly mists where 2d8 spectral strategists ponder lost battles. Provide fresh perspectives showing humility to gain tactical insights; arrogance turns their despair into an ethereal blitz.

d100 = 64

A nobleman is walking down the hall, muttering to himself about how his wife has been acting lately. He says that she's been acting strange, like she's seeing things in the mirror...

d100 = 65

In this room, the players find a wounded man named Jack, who is a member of a local thieves' guild. He is hiding from his boss, who is a level 1 thief named John. John is also in this room, standing over Jack with a dagger ready to strike if anyone approaches him. Jack will ask the players to help him, and if they do, John will attack them as well. John has no idea that Jack is a member of his guild. He has been charmed by a witch, and he believes that Jack is trying to steal from him.

d100 = 66

d100 = 67

The music room’s instruments play of their own accord and transform into malevolent spirits seeking to drive off or possess intruders.

d100 = 68

In the Crypt of Cascading Shadows, cobweb-strewn alcoves hide 2d10 obscured wraiths wailing in sorrow and longing. A ghostly bard, strumming dissonant chords, requests the players' involvement in comedic satirical performances made from ancient histories. Defeating or disbanding these belligerent shadows through humor and heart may reveal truths behind the castle’s sorrow-inducing curse and open pathways to a riddled rift of the realm.

d100 = 69

Two men are arguing about some kind of bet. One of them needs a loan, but the other man will not give him one.

d100 = 70

An audience chamber with magical acoustics amplifying players' words. They must figure out how to communicate effectively to avoid deafening or silencing themselves.

d100 = 71

A group of 2d4 guards are walking down the hall, talking about an upcoming tournament. They notice the players, and ask them if they are entering the tournament.

d100 = 72

3d4 helpless birds flutter around a poisoned fountain.

d100 = 73

In the grand hall, where chandeliers sway from cold drafts, players hear whispers of conspiracy amongst the 3d8 ghostly courtiers. Conversation snatches speak of a betrayal that led to the castle's doom. A translucent queen paces, her face frozen in noble despair. Players must decide whether to delve into the library archives to uncover the nature of the ancient wrong—and risk becoming entangled in the ghostly intrigue themselves.

d100 = 74

A large rat is scurrying around one of the towers. If the PCs investigate, they will find out that it is a rat-man, who is looking for something in the tower.

d100 = 75

The stables hold spectral horses pent up with grief. Freeing them releases 2d4 ghost riders who chase the players, harboring vengeance. Upon defeat, they reveal dark secrets about the castle’s royal family.

d100 = 76

1d8 giant centipedes scuttle across a damp dungeon floor, attracted to lingering warmth from your torches.

d100 = 77

Exploring the armory, your party is beset by nine animated armors, driven by an ancient protective enchantment gone awry. They fight with the skill of their original owners. Defeating them offers powerful, enchanted weapons but also raises alarms that summon undead knights from deeper within the castle.

d100 = 78

Ghostly children run through the halls, eager to tell stories or play more sinister games.

d100 = 79

A hidden chapel, overgrown with black roses and echoes of lost prayers, shelters a banshee who sings of broken vows. She is guarded by 1d8 shadow hounds, creatures born from the abyss of betrayed trust. Crafting a counter-charm or silencing her wail reveals forgotten relics of an ancient pact that, if restored, could rally ghostly legions to the realm’s defense against an oncoming invasion.

d100 = 80

A minstrel tunes his lute in a quiet corner, softly strumming as the wind gusts outside.

d100 = 81

Within the vaulted kitchen, now an abattoir, lies a trio of grotesque butcher golems. Made of flesh and steel, they tirelessly prepare meals for a long-dead royalty. Engaging these horrors forces the party to contend with their reanimated victims. Victory could yield rare alchemical components, but protecting a weak point is critical as the golems defend their domain with brutal zeal.

d100 = 82

A tranquil crypt hallway where fae lights guide the way. However, the lights shift in unpredictable patterns, demanding keen observation.

d100 = 83

In a shrine shrouded with an aura of serenity and old magic, a ghostly priestess appears, surrounded by 1d6 celestial guardians. Her voice sings songs of lament for the castle’s fallen glory, each note imbued with healing power or dark curses, contingent upon the players' actions. She offers an ancient blessing but only to those who can interpret her cryptic lamentations.

d100 = 84

A cobbler repairs boots in a small workshop, the repetitive tapping sound mingling with the wind's whistle.

d100 = 85

Two swordsmiths sit by the forge, the noisy clang of metal on metal echoing through the courtyard.

d100 = 86

A group of 2d6 soldiers can be seen marching past the players' location. If attacked, they will fight back.

d100 = 87

The ornate throne room at the end of a long corridor seems to be made of solidified shadows, the walls whispering truths and lies alike. As you move closer to the throne, a sense of dread builds, and the shadows shift, forming obstacles and spectres that test your courage and resolve. Only by confronting the shadows’ challenges head-on can you safely exit this somber domain.

d100 = 88

A dark, foreboding mirror draws your gaze, and when you look into it, your reflection steps out, an evil doppelganger with all your abilities and knowledge.

d100 = 89

Ascending a frigid tower, you find a crystal observatory and an animated model of the cosmos overseen by a scholar's ghost. This spectral astrologer guides 4d4 star-spawned guardians threatening astral annihilation. Perspicacious collaboration may unlock riddles of cosmic importance or provide celestial guidance, while arrogance leads to existential confrontations and glimpses into cataclysmic portents.

d100 = 90

1d8 giant centipedes scuttle across a damp dungeon floor, attracted to lingering warmth from your torches.

d100 = 91

A guard sees the players and pulls them aside. He tells them that he has heard about them and that he wants to hire them for a job. He tells them that he will pay them well if they help him. He tells them that he has a brother that he wants them to find. The brother stole from the guard and ran away. He tells the players that his brother is in a local village and that he is staying at the local inn. He gives them the name of the town, the inn, and his brother's name. He also gives them a small drawing of his brother.

d100 = 92

The party will see a group of men who look to be in charge of some sort. They are arguing over what to do "with the prisoners." They haven't made up their mind yet.

d100 = 93

In an abandoned tower depopulated long ago, players discover a disturbing rite remnants littered with bones and arcane symbols. The spirits of 2d8 cultists emerge, seeking power beyond their demise. Lighting the candles strewn around the circle sparks a pit of avatars from beyond. Players face the option of dispelling these dark entities through a high-stakes ritual (requiring high spellcasting DC 18), granted knowledge of a greater world-ending prophecy. Failure leads to an open rift, summoning monstrous servants regularly.

d100 = 94

A group of guards are walking down a hallway. They are looking at the wall. The wall is covered with mold. The guards are doing nothing about the mold on the wall.

d100 = 95

Ascending the uneven steps of the alchemist’s tower, players uncover a workshop filled with arcane apparatus and volatile reagents. Suddenly, a swarm of 2d4 lightning-infused homunculi fires erratic bolts of energy, each spark unearthing fragments of powerful incantations and forgotten alchemical formulas. Locating the main source of power within the tower could lead players to discover ancient advancements pivotal to the realm’s magical history.

d100 = 96

A meditation archway where stones hum with energy aligned to the chakras. Players need to find inner balance to pass through.

d100 = 97

A group of men are sitting around, talking about the Cult of Zan. They have heard rumors about the Cult sacrificing people.

d100 = 98

Night falls, and Sir Alaric requests the adventurers' presence in the castle’s grand dining hall, a dazzling room adorned with suits of armor and elaborate chandeliers. A protective ward shimmers at its threshold, placed there after rumors of Varek’s infiltrations. As the adventurers dine with nobles and exchange tales, the ward suddenly shatters—phasing out the unsuspecting diners. The players must navigate shadow conjurations of false allies, with only their wits and combat prowess guiding them through this maze orchestrated by Varek.

d100 = 99

In the wine cellar, a group of vampires lie in wait, emerging from their coffins as soon as you step into their territory.

d100 = 100

The players hear a man talking to himself as he walks down a hallway. When they reach him, they'll find that he's lost and confused and needs directions out of the dungeon/castle/whatever. His name is Alfred and he's an out-of-work mercenary who is looking for work so he can get paid and get drunk. His main skill is drinking, but he's also good at fighting and wants to get hired as security for a noble's party or something like that. He's also looking for work as an assassin, but he's not very good at that either. He'll agree to join the party if they can get him some work as an assassin or mercenary bodyguard or something like that. He would rather drink than fight but he will do it if he has to because he's down on his luck right now, you know?

Use this table with the rest of Doungim's D&D 5e toolkit

A random encounter scenario is just the start of a scene. Pair it with a creature from our D&D 5e monsters catalogue (3,000+ monsters with full stat blocks), an NPC from our pre-built D&D NPC roster, a spell from the D&D 5e spell list, and a reward from the D&D magic items catalogue — and you have a full one-page session ready to drop on your D&D 5e or 2024 party.

Other dice tiers for the castle: D4, D6, D8, D10.

Want a different setting? Browse all 41 D&D encounter locations — from arctic plains to elemental planes, every D&D 5e location has its own table on Doungim.

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