If you are trying to figure out which D&D session zero topics actually matter, the answer is simple: cover the stuff that usually blows up later when nobody talks about it first. Session Zero is where you decide what kind of game you are playing, how the table works, what is off-limits, and whether the party is made of cooperative adventurers or five separate court cases. It is not glamorous, but neither is fixing a campaign after session three turns into passive-aggressive group therapy.
A good Session Zero does not need to feel like a corporate retreat with dice. It just needs to get everyone aligned. If you do that well, the campaign has a much better chance of surviving the usual killers like scheduling chaos, tone mismatch, weird house rule surprises, and the classic “my character would absolutely rob the cleric” speech.
Start With The Campaign Pitch
The first thing to cover is what the campaign actually is. Not in vague fantasy-novel terms either. Be specific.
Talk about tone first. Is this heroic high fantasy, creepy horror, political intrigue, slapstick chaos, or some cursed blend of all four? If one player shows up expecting Baldur’s Gate drama and another arrives ready to play medieval improv goblin hour, you should probably sort that out before initiative is rolled.
Then cover the gameplay emphasis. Some groups want tactical combat and careful dungeon crawling. Others want roleplay-heavy character drama. Most want a mix, but the proportions matter. It is useful to ask players directly what they want more of and what they want less of. That one question can save a lot of future disappointment.
Also talk about lethality. Is death on the table? Is resurrection common? Are you running a forgiving campaign or one where bad decisions get the full educational experience?
Lock Down Logistics Before They Murder The Campaign
Most campaigns do not die because of dragons. They die because nobody can make Thursday.
Talk about how often you are meeting, how long sessions will run, where you are playing, and what happens if someone misses a game. Decide this early. If you do not, you will slowly drift into that familiar swamp where every session begins with twenty minutes of calendar negotiations and one person typing “sorry guys crazy week” for the eighth time.
Cover the practical stuff too. Will you play in person or online? What platform are you using? How do you communicate between sessions? Who gets recaps? If one player is absent, does their character fade into the wallpaper, get run by the DM, or become a conveniently silent hireling with excellent dental coverage?
None of this is romantic. It is also the reason your campaign makes it to month three.
Cover Rules And House Rules Up Front
One of the biggest D&D session zero topics is rules. Not because rules are exciting, but because surprise rules are annoying.
Set expectations for character creation. Which books are allowed? Is homebrew welcome, tolerated, or banished to the outer planes? Are feats in? Multiclassing? Variant humans? Stat rolling or point buy? Starting level? Starting gear?
Then talk about house rules. Do you use flanking? Bonus action potions? Critical hit variants? Inspiration changes? If you change the rules from the official baseline, say it before someone builds a character that only functions under assumptions you quietly deleted.
And decide how rules disputes work during play. The cleanest answer is usually this: the DM makes a temporary ruling at the table, the group checks it later, and everyone moves on with their lives. Otherwise every tense scene gets flattened by fifteen minutes of rules archaeology and one guy opening seventeen tabs like he is defending a dissertation.
Build Characters As A Party, Not As Separate Accidents
Character creation is where a lot of groups accidentally sabotage themselves.
Do not just let everyone show up with fully isolated characters and hope chemistry happens by magic. Ask why the party is together. Are they friends, mercenaries, relatives, survivors, guild members, or just people with a shared problem? Even a simple connection helps.
This is also the moment to set expectations around optimization and spotlight. Is this a power-gaming table? A casual story-first table? Something in between? If one player builds a tightly tuned combat machine and another builds a beekeeper wizard with emotional baggage and no damage output, that can work, but only if everyone knows what game they are in.
Backstory expectations matter too. Some players bring a paragraph. Others arrive with twelve pages, three villains, and a dead sibling named Elias who is somehow still alive. Decide how much detail is actually useful.
Most important, make it clear that characters need a reason to cooperate. The brooding loner who refuses the quest is not deep. He is administrative friction wearing a cloak.
Set Table Etiquette And PvP Expectations
You should also talk about how the table behaves.
Are phones fine, limited, or banned unless somebody is checking rules? Are side conversations okay? Are snacks communal? Is alcohol involved? Can jokes interrupt serious scenes, or are you trying to maintain immersion for more than six consecutive seconds?
Then get explicit about player-versus-player behavior. Can characters steal from each other? Lie to each other? Fight each other? Betray each other? Romance each other? Every table has a different tolerance for this, but “we’ll figure it out later” is usually how later becomes awful.
This is really the social contract part of Session Zero. It is the same basic tabletop problem we talk about in MTG Salt Culture: Why Some Cards Feel “Unfair” Even When They’re Fine. The game piece is not always the real issue. A lot of the time, expectations are.
Cover Boundaries, Hard Limits, And Safety Tools
This is one of the most important D&D session zero topics, even if some groups still act weird about it.
Ask about hard limits, meaning topics that should not appear at all. Then ask about softer boundaries, meaning themes that can exist only lightly, off-screen, or with caution. Depending on your group, this might include graphic violence, abuse, phobias, sex, torture, harm to children, or specific personal triggers. You do not need to interrogate people. You just need clarity.
Then pick a safety tool. Some groups use lines and veils. Some use an X-card. Some use a verbal pause phrase. The exact tool matters less than making sure everyone knows it exists and can use it without having to defend themselves like they are filing a rules appeal.
And yes, even if your group has known each other forever, this still matters. Familiarity does not grant psychic powers.
Clarify The Shape Of The Campaign
Before you wrap, cover the overall structure.
Is this a sandbox or a guided story? A short arc or a long campaign? Milestone leveling or XP? Are magic items common or rare? How serious is the world? How much player agency is on the table? Are there factions, patrons, or major setting assumptions players should build around?
This is where a simple one-page campaign summary helps a lot. A short document with the premise, tone, allowed options, major house rules, and party expectations can save everybody from “wait, this is a war campaign?” halfway through character creation.
For longer campaigns, sustainability matters too. That is true in D&D just as much as it is in card games. Our article on Healthy Gaming Habits for MTG: Balance, Not Burnout is aimed at Magic players, but the principle translates perfectly. If the game becomes obligation instead of fun, people start vanishing into “busy lately” status.
End With Actual Agreements, Not Vibes
Before Session Zero ends, summarize the decisions you made.
What is the tone? What is allowed? When do you play? What is off-limits? How does PvP work? How are rules disputes handled? How do absent players work? Write it down somewhere simple and share it with the group. Memory is unreliable, and selective memory is apparently a class feature.
Then ask two final questions: what is everyone excited about, and is anyone worried about anything? Those answers are often more useful than the entire rest of the meeting.
And one more thing. If you already started the campaign without a Session Zero, you can still do one now. You are not disqualified. You are just doing maintenance after ignoring the check engine light.
If you only cover five things, make them these: campaign tone, scheduling, rules and house rules, character creation, and boundaries. Those alone will prevent a shocking amount of nonsense.