Game mastering

Session zero: the checklist

Session zero is the conversation before the campaign starts. It prevents most table problems before they happen, and makes characters fit together.

By the Rollune team Updated 1 min read

In short

In session zero the group agrees on the game's tone and themes, safety tools, house rules (crits, rolling method, dice apps), logistics, and how the characters know each other. It usually takes an hour or two, and often includes character creation.

1. The pitch

The GM describes the campaign in a few sentences: setting, genre, what the characters will mostly do (dungeon crawls? intrigue? travel?), and the expected length.

2. Tone and content

  • How serious or silly should it be?
  • How much combat, exploration and roleplay?
  • Themes to avoid or handle carefully.

3. Safety tools

Agree on simple tools such as lines and veils (hard limits and fade-to-black topics) and an X-card or verbal "let's skip that." Revisit them any time.

4. House rules

5. Logistics

Schedule, session length, what happens when someone is absent, food, location, online or in person.

6. Characters together

Create characters together, or at least share concepts. Give every character a connection to at least one other: siblings, old debts, a shared patron. Make sure each one has a reason to join the adventure.

Session zero checklist

  • ☐ Campaign pitch and expected length
  • ☐ Tone, genre and content limits
  • ☐ Safety tools agreed
  • ☐ House rules noted
  • ☐ Schedule and absences
  • ☐ Characters created and connected

Tip: create everyone's sheet with the free character sheet creator, then move the heroes into Rollune so everyone rolls with the right modifiers from session one.

FAQ

Questions, answered

Still curious? The app's help section and store listing have more.

What is session zero?

A meeting before the first real session where players and GM discuss expectations, tone, rules and characters so everyone wants to play the same game.

Do I need a session zero for a one-shot?

A short version helps: five minutes on tone, content limits and the premise is enough.

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