Session Zero: Why the Foundations Matter

By Jack Simms – D&D Lead and DM of the “Death and Taxes” Campaign

There is a moment before every great Dungeons & Dragons campaign where none of it exists yet.

The kingdoms are names on paper. The villains are half-finished thoughts scribbled into notebooks. The taverns are empty. The roads untrodden. The party are not heroes yet, merely ideas sitting around a table clutching fresh character sheets and bags of dice.

And in my opinion, one of the most important things a Dungeon Master can do is treat that moment with care.

Session Zero has become one of those phrases that gets thrown around a lot in tabletop spaces, often reduced to a checklist of safety tools, scheduling conversations, and house rules. Those things absolutely matter - immensely so - but a truly good Session Zero is much more than administrative setup. It is the laying of foundations. It is the first brick placed in the road the players are about to walk together.

When done properly, Session Zero is where a campaign begins to come to life.

For me as a DM, there is something incredibly rewarding about sitting down with players and properly embedding their characters into the world. Not just asking “What class are you playing?” but asking questions like:

• Who taught you to fight?

• What scares you?

• Who would mourn you if you disappeared tomorrow?

• What part of the world do you call home?

• What rumours might people already know about you?
  

Those conversations matter because they transform characters from stat blocks into people in the world you've made. Suddenly the world gains texture. The blacksmith in a village is not just a vendor anymore - perhaps they trained one of the party members as a child. A random noble house suddenly matters because somebody’s family owes them a debt. A road through the woods carries emotional weight because one character grew up hearing ghost stories about it from their grandmother.

That is where getting players immersed truly starts: not in maps or miniatures, but in investing in that set up.

An organised and communicative Session Zero also builds trust, and I honestly think trust is one of the most important resources at any D&D table. Players need to trust that they can engage emotionally with the story without being mocked or sidelined. DMs need to trust that players will buy into the world rather than constantly trying to “beat” it. Setting boundaries and expectations openly allows everyone to relax into the experience because they understand what kind of story they are stepping into together.

Particularly in roleplay-heavy campaigns, boundaries should not feel restrictive. Once everybody understands the tone of the game, the themes involved, and what topics should be avoided or handled carefully, It should create an atmosphere where players stop worrying about whether they are “playing correctly” and instead start focusing on creating moments together.

And those moments are the reason many of us do this in the first place.

As a DM, I genuinely believe worldbuilding is an art form all of its own. Some people paint landscapes. Some compose music. Some write novels. Dungeon Masters build living worlds designed to be explored collaboratively. We create cultures, politics, festivals, ruins, histories, accents, taverns, songs, family lines, rivalries, little superstitions, and strange old men selling enchanted spoons from carts by the roadside.

But more importantly, we create moments for our players to shine.

The heroic speeches. The quiet campfire conversations. The arguments between friends after something goes wrong. The joy of a party finally scraping together enough gold to buy something ridiculous. The tragedy of loss. The silliness of a tavern game that somehow becomes more emotionally important than the main plot.

Those mundane little moments are often the things players remember most years later.

Not every scene has to involve saving the world. Sometimes the best sessions are the ones where the group simply exists together within the setting. A well-run Session Zero helps create the conditions for those moments to happen naturally because the players already feel connected - not only to their own characters, but to each other and to the world around them.

That is something I have tried very hard to carry into Death and Taxes, the new D&D campaign I am currently running with the Society. Before the first dice were rolled, we spent time discussing tone, expectations, comfort levels, world lore, character connections, downtime roles within the party, and how these adventurers fit into the wider Commonwealth they inhabit.

Because when players feel rooted in the setting, everything becomes richer. Victories feel earned. Losses hurt more deeply. Choices matter more.

And honestly? As a DM, there is no better feeling than watching players care about something that only existed in your head a few months earlier.