How to start a D&D session, and how to end one, so the middle takes care of itself

The ten minutes before: let the table talk, then call it

People arrive with a week of things to say to each other, and they are going to say them. Fighting that loses; scheduling it wins. Give the catch-up a slot — the first fifteen minutes, the food, the drinks — and give it an end: a start time fifteen or twenty minutes after the arrival time, said out loud and kept to. "We open at half past" is the whole technique. A table that knows when the game begins talks freely until then and settles when it arrives; a table that does not drifts into the game one player at a time and the first scene plays to half an audience.

Use the gap for the things that should never happen during play: the level-up someone did not finish, the rules question from last week, the character sheet nobody printed. Then have a signal that the game has started and use the same one every week. A line of music, the lights, standing up to read the recap, the phrase "last time" — anything the table learns to recognise. The signal matters more than what it is. If you record your sessions, the signal is also when the recording starts, which keeps twenty minutes of dinner out of the transcript.

Open with the recap, and keep it under a minute

The recap is the first thing that happens after the signal, and it is short: three or four facts the table needs to share before anyone rolls, ending on the cliffhanger. Where the party stands, what they are in the middle of, what they owe or are owed, and the last thing that happened. Under a minute read aloud. A recap that runs five minutes is a summary of the campaign, and the table stops listening after the first.

Writing it is a craft of its own, and the session recap guide covers that craft, a template, and five ways to run the recap at the table — player-led, in-character, a quiz round — so the ritual does not go stale. For the opening itself the only rule is the last line: it must be the situation the party is in as play begins, and the first thing you say after it is "what do you do".

Re-establish the scene in three sentences

Between the recap and the first decision, say where the characters are standing, what time it is in the world, and what is physically in front of them. Three sentences, present tense, concrete. "You are in the ferry house at Grey Ford. It is just after dawn, the morning after the fire. The ledger is on the table between you and the door is still barred." That is the whole scene-setting; anything more and you are narrating a session rather than starting one.

Then one practical check: resources. Who is hurt, who has spells left, what the party is carrying that it did not have last week. Ask it as a question rather than reading it from your notes, because the players’ answers tell you what they think is true, and the gap between that and your notes is where the first ten minutes of confusion usually hide. If a player disagrees with your record of a hit point total or a bought item, settle it now, not during the fight.

Give them a decision inside the first fifteen minutes

A session has started when a player has made a choice that matters, and the sooner that happens the better the session goes. The failure mode is the slow open: a shopping scene, a long travel montage, an NPC who talks for ten minutes before saying what they want. None of those is a decision. The party should be choosing something — jump or go over the weir, open the ledger or hand it back, follow the clerk or wait for him — within fifteen minutes of the recap ending, and ideally within five.

This is why the recap ends on the cliffhanger and why your prep should have a "why" for the session before it has anything else: the opening hook on the session prep checklist is the decision you are about to put in front of them, written down the night before. If last session ended somewhere quiet — an inn, a long rest, a town with nothing happening — do not open there. Open on the morning something has changed, narrate the quiet hours in a sentence, and start with the knock on the door.

In medias res is the strong version: open inside the action, a round into the ambush or mid-sentence in the argument, and let the recap be what the characters say to each other as it happens. It works once in a while and wears out if it is every week. Use it when last session ended flat.

Starting when someone is missing, late or new

Decide the absent-character rule once, at the start of the campaign, and apply it without discussion: the character fades into the background, or another player runs them in combat only, or they are off on an errand you narrate in a line. What ruins an opening is spending ten minutes deciding this fresh each time. The late player gets a thirty-second version of the recap when they sit down, from you or from the player next to them, and the game does not stop for it.

A new player at the table changes the opening more than a missing one. Give them two minutes before the recap, not during it: who the party is, what it is trying to do, who the two or three people are whose names will come up. Then let the recap do the rest and let their character arrive inside the first scene with a reason to be there. Catching up a player who missed a session covers what to send ahead of time, which cuts the two minutes to one.

The structure of a D&D session, loosely: open, complicate, close

Most sessions that work have three parts, and you only need to plan the first and last. The opening is everything above: the recap, the scene, the decision. The middle is where the table takes over — the complication you prepared, the fight that follows from it, the scenes you did not expect. The close is one planned beat you can reach from wherever the middle leaves you, and a deliberate ending after it.

How long each part gets depends on how long the session is. In a four-hour slot the opening is the first half hour including the arrival drift, the close is the last forty minutes, and everything else is the middle. How long a session should be has the figures tables actually report, and the timed outline on the prep checklist turns those proportions into a sheet you can fill in. The one structural rule worth keeping: do not start a fight you cannot finish. A combat that is interrupted by the clock is the worst ending a session can have, because it is not an ending at all.

How to end a D&D session: pick the stopping point before you reach it

A good ending is chosen, not reached. Sometime in the last hour, look at where the table is and decide which of two endings you are steering toward: a natural break, or a cliffhanger. Both are fine. What is not fine is the third option, where the session ends because someone looked at the clock mid-scene and said "we should probably stop".

The natural break is the end of a scene with the next thing clearly in view: the party has the ledger, the door is shut, tomorrow they go to the mill. It is restful, easy to recap, and right for a table that meets weekly and does not need the hook. The cliffhanger is the same scene stopped one beat earlier — the door opens and it is not the clerk — and it is right for a table that meets rarely, because the open question is what keeps the campaign alive across a three-week gap. Either way, say the last line, then say "and that is where we stop". Do not let the table talk the scene one more exchange forward, because that exchange will be the thing nobody remembers.

Give yourself a twenty-minute warning and say it out loud: "twenty minutes, so this is the last scene". Players pace themselves to it, and it stops the slow overrun where a session scheduled to end at ten ends at eleven with everyone tired and nobody having chosen to stay. If the energy has gone before the clock has — it happens, after a hard fight or a long argument — end early at the next break and say so plainly. An hour of flat play is not a gift to anyone.

The last ten minutes: the end-of-session ritual

After the last line, ten minutes of housekeeping, the same every week. First, the only question that matters for next session: "what do you want to do next time?" Ask it, let the table answer, and write the answer down verbatim. It is the single best piece of prep you will ever get, it costs nothing, and it keeps the players from spending the first twenty minutes of the next session relitigating a decision they made at the end of this one.

Then the bookkeeping that should not happen mid-game: experience or milestones, treasure that was found but not divided, the item nobody identified, the downtime you are allowing before next time. Then the date of the next session, confirmed while everyone is in the room, because the scheduling thread that starts on Tuesday is where campaigns go to die.

Last, before anyone leaves, write your own five lines: where they ended, what they decided, who they met, what was promised, and what you have to resolve before next time. The campaign memory guide has the five in full and the reason they are five rather than fifteen. If you recorded the session, stop the recording here, after the housekeeping — the "what do you want to do next time" answer is worth having in the transcript.

After the session, briefly

Within the hour, while the session is still a story in your head rather than a list, turn the five lines into the recap for next time and post it where the table will see it — the session recap guide above covers where and when. Within the week, do whatever prep the "next time" answer implies, and no more. The opening of the next session is now already written: the recap you just posted, ending on the line the table chose themselves. That is the loop, and once it is running the middle of every session mostly looks after itself.