Imagine spending weeks preparing the perfect campaign, only to watch it collapse in the first session because players expected completely different experiences. One player thought you were running a lighthearted adventure, another built a character who refuses to work with the group, and a third keeps checking their phone, uninterested. This happens constantly at gaming tables, but it can be prevented with a session zero.
What is Session Zero?

Session zero is a meeting held before your campaign begins. It’s where the gamemaster (GM) and players discuss expectations, establish boundaries, create characters, and prepare for a successful game. Think of it as a planning session that unifies the group through shared understanding and purpose.
When RPGs were played primarily among close friends, many expectations were implicit and based on shared history. Today’s gaming landscape includes more diverse groups, online play, and players who often meet as strangers. These changes require more communication about what everyone wants from the game.
Session zero serves four critical functions:
- It aligns expectations, ensuring everyone wants the same type of game experience.
- It establishes boundaries to ensure all players feel comfortable.
- It fosters collaboration by involving players in the creative process from the beginning.
- It builds party cohesion through shared backstories rather than forcing strangers to work together.
Essential Discussions

Campaign Vision
Begin by presenting your campaign concept clearly and concisely; focus on genre, setting, and central premise. Avoid overwhelming players with extensive worldbuilding details.
After presenting your vision, open dialogue. Ask what aspects excite players most, what questions they have, and what elements they’d like emphasized. This is important to understand what engages your specific group and adapt accordingly.
Discuss content boundaries. Many groups find film rating systems helpful—is this a PG-13 adventure with implied violence, or an R-rated exploration of mature themes? Be specific about sensitive content like torture, manipulation, or violence. This ensures everyone opts into the experience they’re actually getting.
Player Expectations
Understand how your group wants to spend time together. Discuss the balance between combat, exploration, and social interaction based on player preferences. Some groups thrive on tactical encounters, others prefer character development and social intrigue, and many want discovery and investigation at the center of their adventures.
Address practical matters. How long do you expect the campaign to last? How often will you meet, and for how long? What happens when players can’t attend? Establish clear schedules and cancellation policie and choose your primary platform for communication between sessions.
Discuss your GMing style openly. Are you running a sandbox where player choices drive everything, or a more structured campaign with predetermined plot points? How much collaborative storytelling do you want? Different approaches work for different groups, but mismatched expectations create significant friction.
Character Creation and Bonds
Traditional RPGs often treat character creation as an individual process, resulting in parties that are collections of separate protagonists forced together by circumstance. A session zero allows for genuine collaboration that creates stronger storytelling from the beginning.
Start by discussing what kind of group you want to be. A military unit with shared training? Mercenaries united by practical concerns? Members of a secret organization? Investigators brought together by mysterious circumstances? This gives everyone a framework that naturally supports group cohesion.
These relationships can be positive, negative, or complex, but they should provide reasons for continued interaction and investment in each other’s stories. Consider shared experiences, common backgrounds, or mutual contacts that bind the party together beyond simple convenience.
Comfort
Safety tools provide structured methods for ensuring the game remains enjoyable for everyone. These are frameworks that gives clear ways to manage comfort levels.
- Lines and Veils establish content boundaries before play begins. Lines are hard limits—topics that won’t appear in your game. Veils are softer boundaries for content that can exist in the story but won’t be detailed, often called “fade to black” moments.
- The X-Card provides immediate content editing during play. Any participant can tap the card (physical or digital) to indicate that current content should be changed or skipped, with no explanation required. This tool’s simplicity makes it effective for unexpected situations not anticipated during pre-game discussions.
- Stars and Wishes offer ongoing feedback mechanisms. At session ends, each player shares a “Star” (something they enjoyed) and a “Wish” (something they’d like more of or done differently). This helps to addresses concerns before they become serious problems.
Implement these tools by creating atmospheres where their use is normalized and supported. Practice during session zero so everyone understands how they work in practice, not just theory.
Table Rules
Establish house rules clearly. If you’re modifying core rules—using milestone leveling, allowing healing potions as bonus actions, or eliminating critical fumbles—communicate these changes beforehand.
Discuss phone/tablet use in your group. Some tables ban devices entirely for focus and immersion, others encourage their use for rule lookups and digital tools. Address food and drink, disputes during play, and sharing of the spotlight.
Player versus player (PvP) actions require communication. Can players lie to another, steal from each other, or engage in conflict? Some groups find internal tension adds drama, others consider it disruptive. Establish these boundaries and, if you allow PvP actions, ensure all players understand it.
Making a Session Zero Work

In a session zero, remember to cover the fundamentals but to also remain flexible to your group’s needs. You may consider sending a campaign overview to your players beforehand.
When disagreements arise, ask participants to explain their reasoning—understanding motivations often reveals compromise solutions. Remember to address quieter players directly with specific, non-intimidating questions to make sure they’re on board with the gaming experience.
If your campaign is online, play some test runs to ensure everyone understands the platform. You can also use multiple communication mediums, such as video for main discussion, text for clarifications, and shared documents for collaborative notes.
One-shots can focus on the essentials whereas full campaigns may require multiple “sessions zero.” New players need explanation of basic concepts and guidance through character creation while veteran groups can focus on campaign-specific elements. Mixed experience tables require attention to ensure experienced players don’t dominate discussions or overwhelm newcomers.
Rules-heavy systems like Pathfinder require more time for character creation and house rules. Narrative-focused games often integrate their rules with structured exercises for collaborative worldbuilding.
Common Challenges
Avoid treating a session zero as a lecture, it’s a collaborative discussion. Don’t overwhelm players with extensive worldbuilding or rush through important topics.
Some groups find formal session zero processes unnecessary, particularly close-knit friends with established communication patterns. In those cases, you may opt for one-on-one conversations or loose discussions through messaging.
Remember that a session zero begins dialogue, it doesn’t solve every problem. Plan check-ins throughout your campaign to revisit agreements and address emerging concerns.
A Session Zero Is, In Essence…
A session zero represents intentional, collaborative storytelling that acknowledges the complexity of modern gaming communities. Instead of simply hoping good dynamics emerge, it creates conditions where memorable campaigns flourish.
The goal isn’t conducting “a perfect session zero,” but creating conditions where all participants can engage in collaborative storytelling. Sometimes that requires formal discussion, sometimes informal check-ins, and sometimes alternative approaches entirely.
