Introduction
Chapters 4 and 5 of the 2024 Dungeon Master's Guide cover the same job at two sizes. Chapter 4 builds a single adventure; Chapter 5 builds a campaign, which the book treats as the series that those adventures add up to. Both follow the same four steps: lay out the premise, draw in the players, plan the pieces, and bring it to an end.
This guide covers both scales on one page. The Creating Adventures half walks through premise, hooks, encounter design, and climaxes. The Creating Campaigns half adds the campaign journal, long-running conflicts, setting choices, Session Zero, pacing across levels, and how to finish. Neither half locks you into a script: the DMG is explicit that an adventure isn't a complete story until you play it, because your players are coauthors.

The Four Steps at Two Scales
| Step | For one adventure | For a campaign |
|---|---|---|
| 1. Lay out the premise | A situation and a conflict worth the party's attention | Character motivations, three conflicts, and a setting |
| 2. Draw in the players | A patron, supernatural, or happenstance hook | Session Zero, party bonds, and a detailed starting location |
| 3. Plan the pieces | Encounters built from objectives and obstacles | Adventures that invest the players, plus break episodes |
| 4. Bring it to an end | A climax, a denouement, and rewards | A finale that settles the major conflicts |
Start small. A first campaign adventure should be short and simple so the characters have time to become a party, and the rest of the campaign can grow from what the players do in it.
Creating Adventures
An adventure resembles a comic issue or one episode of a serialized TV show: limited in scope on its own, but part of a larger story once it joins a campaign. Think of it less as a fixed arc and more as a set of situations you present, which the players' choices then shape.
Adventure Premise and Conflict
Almost anything can start a premise: a rumor of a treasure-filled dungeon, a brewing war between two small nations, the death of a leader, a monster migration, a comet, a portal opening to another plane. A premise can be as small as "a magic item the characters want is hidden in a dungeon," and browsing the magic items in the DMG's treasure chapter is a fast way to find one. Published adventures work the same way: you can swap in a villain the party already knows, fold in your own setting's details, or lift just a map or a chase sequence and build your own scene around it.
A premise needs a conflict worthy of the party's attention before it becomes an adventure. That conflict doesn't have to be evil against good. A single villain, a villain with lackeys, an evil organization, a rivalry between two families or nations, a natural or magical disaster, or even friction within the party all work. Given the treasure-dungeon premise, the conflict might be as simple as hostile monsters that want to eat the characters, or as layered as two rival families both claiming an ancestral hoard while a volcano threatens to bury the site. If you're stuck, the DMG suggests flipping through the Monster Manual until a creature sparks an idea.
Avoid railroading. If your adventure depends on certain events, plan several ways they might come about, and expect clever players to prevent some of them. Keeping two or three adventure threads live at once gives players a real choice, and letting the threads they ignore grow into bigger problems shows that their decisions mattered.
Adventure Situations by Level
The DMG groups adventure scale into four tiers, each with its own kind of threat:
| Tier | Levels | Stakes | Typical foes |
|---|---|---|---|
| Local Heroes | 1-4 | A village's fate | Wolves, giant spiders, cultists, ghouls, brigands |
| Heroes of the Realm | 5-10 | A region's fate | Giants, hydras, golems, devils, demons, mind flayers, a young dragon |
| Masters of the Realm | 11-16 | A nation's fate, or even the world's | Lower Planes schemers, rakshasas, beholders, purple worms, adult dragons |
| Masters of the World | 17-20 | The fate of millions, on the Material Plane and beyond | Balors, titans, archdevils, liches, ancient dragons, manifestations of the gods |
Each tier has a table of situation seeds to roll on or read through: a dragon wyrmling gathering kobolds to build a hoard at levels 1-4, a coven of hags stealing travelers' memories at levels 5-10, a portal to the Abyss spewing demons at levels 11-16. You don't need pages of notes to run any of it. The DMG says a home game can run on no more written notes than one of the short sample adventures at the end of Chapter 4.
Adventure Setting
Many D&D adventures happen in dungeons: great halls and tombs, subterranean lairs, trap-filled mazes, cavern networks, ruined castles. Wilderness treks and adventures in towns and cities work just as well; the DM's Toolbox guide covers the dungeon and settlement rules.
Give an inhabited location its own internal logic. Creatures need food, water, air, and a secure lair, and players who understand that ecology can make informed decisions: setting an ambush at the one freshwater pool, or expecting open passages in a dungeon full of stirges that need to move around to feed. Rival groups of sapient creatures give the party a chance to ally with one side or play them against each other. A map helps almost any location, and it works as a flowchart: each decision point (a branching corridor, a room with several exits) leads to the next.
Hooks: Drawing the Players In
If the situation already threatens the characters or something they care about, that's usually motivation enough. When it isn't, pick a hook that fits your table. A group of noble heroes answers a plea for help; a band of mercenaries wants payment.
Adventure patrons. Many adventures start with a patron offering a reward for a quest. Flesh the patron out as a real NPC (the DM's Toolbox guide covers NPC creation), and use a patron betrayal sparingly: pull that trick more than once and players stop trusting any hook you offer. The DMG's Patron Hooks range from a town crier announcing a job, to a job-board posting in a new city, to the party getting arrested and handed a quest.
Supernatural hooks. A vivid dream the whole party shares, a quest delivered by a god while a character prepares spells, a fortune teller's reading, smoke or birds forming a portent, animals or animated objects that speak clearly, or a ghost demanding that its death be investigated.
Happenstance hooks. The characters find a letter, get pulled in while on an unrelated quest, have a festival they're attending disrupted, suffer a magical mishap, befriend an NPC aboard a ship or caravan, or get attacked after being mistaken for another group of adventurers.
Planning Encounters
Encounters are the individual scenes of the adventure. The DMG boils each one down to an objective with an obstacle, and a good one does at least one of three things: moves the characters closer to a goal, frustrates their progress toward one, or reveals new information.
Character Objectives
These objective shapes can anchor a single encounter, and repeating one across several encounters turns them into a larger problem:
- Make Peace: convince two opposing groups to end their conflict, complicated by enemies on one side or a third party stirring up the fight for its own ends.
- Protect an NPC or Object: guard a person or item, complicated by an NPC who is cursed, panicked, or reckless, or an object that is sentient, cursed, or hard to carry.
- Retrieve an Object: gain possession of something, often against a time limit, with monsters guarding it or traps and hazards blocking access.
- Run a Gauntlet: get through a dangerous area, where reaching the exit matters more than killing every threat.
- Sneak In: move through an area undetected, with combat or social interaction if the party is spotted.
- Stop a Ritual: foil a villain's rite by fighting through minions, reaching the ritual site, or talking the leaders out of it.
- Take Out a Single Target: defeat a villain surrounded by dangerous minions, who may be innocents under the villain's control.
Keeping the Adventure Moving
Players need a clear objective at every stage. The DMG offers three tools when things stall: an adviser NPC who can offer suggestions, an evil intrusion (a minion tied to the main threat who shows up and leaves a clue behind), and the DM's role itself, reminding players what their characters already know or calling for an Intelligence (Investigation) check to connect the dots.
Something for Everyone and Multiple Ways to Progress
An adventure that balances exploration, social interaction, and combat appeals to the widest range of players, though a home adventure only has to appeal to the players at your table (the Running the Game guide covers player preferences). One encounter can serve several tastes: a fight against a gang of gnolls turns into a negotiation when a young dragon wanders in and could be persuaded to help either side.
Make sure the characters have more than one way forward at any point, and plan for the adventure to advance even when they fail. Save single-path challenges for optional extra rewards.
Pacing, Rests, and Random Encounters
Where and when the characters can rest sets the tension. In a large dungeon, scatter a few small rooms with a single door the party can bar, but interrupt a rest now and then if cautious players try to rest after every fight. If you push urgency so hard that players feel they can't stop to look at anything interesting, ease off with a helpful NPC who tells them the situation isn't as dire as they fear.
Random encounters, rolled from a table rather than tied to a fixed spot, can create urgency, drain Hit Points and spell slots, establish atmosphere through themed monsters, reinforce the campaign's major conflicts, and occasionally help the party instead of hurting it. One that starts as filler can take on a life of its own: a wandering ogre might offer directions, guard something important in its den, or charm the players into making it a recurring character.
Combat Encounter Difficulty
The DMG sorts fights into three levels:
- Low difficulty: a scary moment or two, but the characters should win with no casualties, though someone may spend healing resources. As a rough guide, a single monster whose Challenge Rating equals the party's level is a low-difficulty fight for four characters.
- Moderate difficulty: without healing and other resources, this fight could go badly. Weaker characters might drop, and there's a slim chance of a death.
- High difficulty: could be lethal for one or more characters and demands smart tactics, quick thinking, and maybe some luck.
To build one by the numbers, look up the XP budget per character for the party's level and chosen difficulty, multiply by the number of characters, and spend that budget on creatures using the XP value in each stat block. Mix low and moderate fights early so a high-difficulty fight can land as the climax. Terrain makes any fight more interesting regardless of its numbers: changes in elevation, enemies in defensive positions, hazards, mixed monster groups, and reasons to move such as chandeliers, kegs of gunpowder or oil, and rolling stone traps.
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Start BuildingEnding an Adventure
The climax. The best climax is one the players see coming. If a dragon is behind everything, let its minions mention their boss well before the final fight. The DMG's Adventure Climax table offers a battle to the finish, a chase into a villain's refuge, a cataclysm the party must escape, a race to arrive as a master plan completes, a villain and two or three lieutenants performing separate rites that all need disrupting, an ally's betrayal (used carefully), a portal spilling out extraplanar creatures, a dungeon collapsing while the villain escapes, a choice between chasing the villain and saving someone the party cares about, and a defeated threat that transforms into something worse.
Denouement. After the climax, give the story a wind-down: finding out what the dragon's hoard holds, an award ceremony, or time to mourn a companion who didn't survive. This is also where loose threads belong, the ones that can pull the party into the next adventure. The Creating Campaigns section below covers weaving those threads into a longer arc.
Rewards. Material reward is the main reason some characters adventure and a bonus for others. Individual monsters often carry small amounts of coin scaled to Challenge Rating, and larger treasure hoards scale the same way. Beyond gold, the DM's Toolbox guide covers Marks of Prestige, the titles, land, and other recognition that can matter just as much.
Creating Campaigns
If an adventure is an episode, a campaign is the series. The same four steps apply, but the campaign version leans harder on the players' characters, runs longer conflicts, and needs a memory aid to hold it all together.
Hot Take: Three conflicts is the most useful number in Chapter 5, and most DMs ignore it. A campaign built on one villain has nothing to rotate to when the table gets tired of that villain. Three threads, with one small enough to finish in a few sessions, give you something to cut, something to escalate, and an early win the players can feel.
The Campaign Journal
A campaign lasting months or years needs a memory aid. A campaign journal can be a notebook, a binder of notes and tracking sheets, a wiki, or a folder of files, organized by date or session. Some DMs call sessions "episodes"; the DMG treats the terms as interchangeable.
Use the journal three ways: to plan the next session, to record what mattered once a session ends (an NPC you improvised, a clue the party learned), and to look things up mid-session (the name of a character's mule, a tavern you mentioned three sessions ago). It is also your best tool for foreshadowing: rereading old entries turns up details that can resurface later and give past events more weight.
Keep an adventure stockpile alongside the journal, a running list of ideas you haven't used yet. Not every adventure needs to build on the ongoing plot; a good standalone adventure in the middle of a serialized campaign is a welcome change of pace.
Campaign Premise
A campaign's story isn't predetermined any more than a single adventure's is. The premise starts with the characters, then adds conflicts and a setting.
Campaign Characters
Your players are partners in developing their characters' arcs. Learn what excites them two ways: direct input (ask, especially right after a session) and indirect input (a Rogue player probably wants subtlety and skulduggery; a Barbarian player probably wants to fight). Track three kinds of motivation:
- Goal: a short-term reason to adventure, such as treasure, excitement, or a backstory need, and later a lost relic to recover or a mentor to avenge.
- Ambition: a broad, lifelong aspiration, such as becoming a legendary knight or bringing peace to a homeland, which doesn't have to connect to the current goal.
- Quirks and Whims: preferences and impulses that surface during play, like a running joke or a fondness for a specific creature.
Give characters a significant victory roughly every 5 levels as a natural point to set a new goal. Ask what new challenge the victory creates, what part of a bigger ambition it leaves unfinished, who it might upset, and what reward would excite the character while moving them toward that ambition. You can also let the characters' own choices steer: if the party buys a tavern, a competitor can try to shut it down, or the tavern can host a murder mystery.
A background implies family, friends, and foes, so note them in your journal. If one becomes important, develop them with the player, and check that the player is comfortable before revealing a lost sibling or childhood rival mid-campaign. Run occasional character-focused adventures: a past rival returning to settle a grudge, a heist led by the sneaky character, a magic item needed to save someone's hometown, a trial to join an exclusive group of spellcasters. Give the whole party a reason to take part, and rotate the spotlight so every character gets a turn.
Campaign Conflicts
Come up with three compelling conflicts you can build adventures around, and introduce them early. Rotate which one your adventures focus on, keep at least one small enough to resolve quickly, and set the party against some antagonistic force in each. You can also frame a conflict as two powerful forces clashing without deciding in advance which side, if either, the party will join. Replace a conflict once it reaches a satisfying end, or if it isn't landing with your players or you're struggling to build adventures around it.
Think about each conflict's arc the way you think about a character's: how the party first meets it, how it develops, and what a climactic ending looks like. The tier thresholds from Adventure Situations by Level (levels 5, 11, and 17) make good points to wrap up one conflict and reveal a bigger one behind it. The bandits the party fought through levels 1-4, for example, can turn out to be puppets of an enemy nation they must confront in the next tier. The DMG's Greyhawk section includes worked conflict arcs.
Campaign Setting
A setting shapes the stories that can unfold in it. A published setting has the world-building done, though your players may know it as well as you do, so changing key details helps. A setting of your own means nobody at the table knows more about it than you. Either way, ask what settings and genres your players enjoy and build from there.
If you're building your own, work through five questions. What's the setting called? Which factions and organizations matter, and which might act as patrons, allies, or enemies? How common is magic: magic shops everywhere, or rare enough to breed superstition? What mysteries does the world hold, such as a fabled land across the sea or a haunted keep? And what role, if any, do the gods play: distant and detached, or meddling in mortal affairs? The published settings the DMG lists include Dark Sun, Dragonlance, Eberron, Exandria, Forgotten Realms, Greyhawk, Planescape, Ravenloft, Ravnica, Spelljammer, Strixhaven, and Theros, each with its own central conflict and tone.
Arcana Unleashed: Make Magic Visible in One Place First
Arcana Unleashed helps when the campaign needs magic to affect more than a character sheet. Its nine magical factions can supply a patron, ally, rival, or recurring problem; its evolving items can make one treasure matter over time; and its magical creatures can show what an arcane accident or old tradition leaves behind. None of that requires every town, encounter, or character to become equally magical.
Choose one visible consequence for the opening area. A faction might control access to a restricted archive, a neighborhood might need protection after a magical accident, or a newly found relic might carry a promise the party has to decide whether to honor. Give the group a useful resource and a cost, then let a rival arrive after the players understand what is at stake. The Arcana Unleashed magical factions guide helps choose that first relationship; the evolving magic items guide covers pacing a growing treasure.
Treat the sourcebook as a campaign lever, not a replacement for the premise. Ask at Session Zero how much faction obligation, public magic, and magical danger the players want. Then use the Arcana Unleashed overview as the map of the book's options and the Monster guide when you need to read or find a stat block.
Campaign Start
With a journal, a premise, and a setting in hand, it's time to begin.
Session Zero
Run a special session before the first real one to set expectations, share ideas, and agree on house rules; the "Ensuring Fun for All" section in the DMG's first chapter covers the groundwork. Session Zero usually includes building characters together. Encourage different classes so the party covers a range of abilities. Species and background variety matters less: an all-Dwarf party or a troupe of Entertainers can be a lot of fun. Think about how a chosen background, such as Criminal, can seed later storylines, and restrict options that don't suit the campaign. Decide on a starting level too. Many campaigns start at level 1; starting at level 5 suits experienced players who want tougher characters.
Bringing the Party Together
Help players work out how their characters know each other. Are any related? What keeps the group together? What does each character like about the others? Does the party already have a patron? If they're stuck, offer one of the DMG's options: a bonding event (a wedding, festival, or funeral that reveals a shared purpose), happenstance (answering the same call for adventurers, meeting by accident on the same road, or getting trapped together), a mutual acquaintance who can double as a patron (an academy, a guild, a criminal syndicate, an aristocrat, even a sphinx or a dragon), shared history (childhood friends despite different training), or the classic tavern gathering.
Setting the Stage
Share the basics before play starts: starting location details (settlement name, nearby points of interest, prominent NPCs), key events that frame the mood (a recent war, a festival on opening day), and any house rules or variant rules. You'll always know more about the world than your players, but their characters have lived there all their lives and know more than the players do too, so fill in details when they start to matter.
Starting Location
Begin somewhere you can detail: a village, a city neighborhood, an outpost, a roadside tavern. Give players enough to work out their characters' ties to it, and add one or two local attractions that can serve as adventure sites, such as a haunted house on the edge of town or a dungeon in the nearby hills. If you're using a published setting, pick any location and develop it; the DMG presents the Free City of Greyhawk as a model starting location. If you're building your own, detail only this starting area for now and save the wider geopolitics until the campaign has found its direction. If a published adventure launches the campaign, use its hooks to get the characters from the starting location to the action.
Planning Adventures Across a Campaign
The DMG compares a campaign to a garden: each adventure plants new seeds, some elements need weeding out when they don't land, and most campaigns grow in directions you didn't plan. Improvise new locations and NPCs as the story needs them.
Getting Players Invested
Adventurers are remarkable even at level 1. Reinforce that by answering why these characters are the right people for the problem, how their talents get highlighted, and whether an NPC recognizes their reputation or past exploits. Asking players what their characters love, fear, or find unsettling also gives you material for later encounters.
Break Episodes
The escalating main plot needs pauses. At least once every three to five levels, run a low-stakes session or adventure that has nothing to do with the overarching threat, so the table can breathe, reflect, and deepen the characters' relationships. DMG ideas include:
- Bastions episode: the characters tend their Bastions and players take Bastion turns.
- Carnival episode: magical attractions, games, and prizes.
- Creature comedy: flumphs, pixies, faerie dragons, or chatty mimics in a situation built for mischief rather than combat.
- Missing pet episode: a search across a settlement.
- Shopping episode: a friendly NPC needs help buying a birthday present.
- Special event episode: a sporting event, holiday, fancy dinner, or ball.
- Vacation getaway: a quiet beach, a grateful noble's villa, a monastery, or a fairy hot spring.
Time in the Campaign
Most conflicts take weeks or months of in-world time to resolve, and a typical campaign wraps within a year of in-world time unless the party gets long quiet stretches between adventures. If tracking exact days feels like overhead, track by season and festival: "in the winter" or "during the fall harvest festival" is often precise enough. Events tied to a time of year make reliable hooks you can plant early and pay off on schedule: a ghostly castle that appears on a hill every winter solstice, a blood-red thirteenth full moon that stirs werewolves, a comet, or a god's festival.
Ending a Campaign
A campaign's ending should settle the last major conflicts and tie up most of what the beginning and middle started; a few loose ends for a future campaign are fine. You don't need to reach level 20 for a satisfying finish. Wrap up when the story reaches its natural conclusion, and leave room near the end for characters to finish their personal goals. If you run a new campaign for the same table in the same world, let it reflect what the old characters accomplished, but give the new characters their own spotlight instead of making them share it with the previous cast.
Ending Sooner Than Expected
Running out of ideas, losing your own excitement, getting too sidetracked to see a satisfying conclusion, or itching to start a different campaign are all signs a campaign may be ending. Talk to your players rather than pushing through. The DMG's options:
- Player input: ask what they'd like to happen; they may hand you the inspiration you need.
- Switch DMs: a player with strong ideas takes over, and you let go of your plans.
- Transport the characters: a portal to a new world, if the players want to keep their characters in a new setting.
- Arrange a grand finale: end with a bang ahead of schedule, and flip back through the campaign journal for forgotten threads worth one last payoff.
Related Guides
For the session mechanics these adventures and campaigns lean on (D20 Tests, social interaction, combat), see the Running the Game guide. For hazards, traps, chases, NPCs, settlements, and Marks of Prestige, see the DM's Toolbox guide. Return to the Dungeon Master Guides hub for the full chapter map.


