Chance Rolls in Dungeons & Dragons Can Help You Be a More Effective Dungeon Master

As a Dungeon Master, I usually avoided significant use of randomization during my tabletop roleplaying adventures. I preferred was for narrative flow and session development to be shaped by player choice as opposed to random chance. That said, I chose to alter my method, and I'm truly happy with the result.

A collection of vintage gaming dice dating back decades.
A vintage set of polyhedral dice evokes the game's history.

The Catalyst: Observing an Improvised Tool

A well-known podcast features a DM who frequently asks for "chance rolls" from the participants. The process entails picking a specific dice and assigning potential outcomes based on the number. It's essentially no unlike rolling on a random table, these are created on the spot when a course of events has no obvious conclusion.

I opted to test this method at my own session, mainly because it seemed interesting and provided a departure from my standard routine. The results were remarkable, prompting me to think deeply about the ongoing dynamic between preparation and improvisation in a roleplaying game.

An Emotional Session Moment

During one session, my party had just emerged from a city-wide conflict. When the dust settled, a cleric character wondered if two key NPCs—a sibling duo—had survived. Rather than deciding myself, I asked for a roll. I told the player to make a twenty-sided die roll. The possible results were: a low roll, both died; on a 5-9, a single one succumbed; a high roll, they survived.

Fate decreed a 4. This led to a incredibly poignant moment where the characters found the corpses of their companions, forever clasped together in their final moments. The party performed last rites, which was particularly significant due to prior story developments. As a final gesture, I improvised that the forms were suddenly restored, revealing a spell-storing object. I randomized, the item's magical effect was precisely what the group required to resolve another major situation. You simply plan this type of perfect coincidences.

A DM running a lively game session with several participants.
A Dungeon Master facilitates a game utilizing both preparation and spontaneity.

Sharpening Your Improvisation

This incident caused me to question if improvisation and making it up are truly the core of D&D. Although you are a prep-heavy DM, your ability to adapt may atrophy. Groups often find joy in derailing the best constructed plans. Therefore, a skilled DM must be able to adapt swiftly and fabricate scenarios on the fly.

Using on-the-spot randomization is a fantastic way to practice these abilities without venturing too far outside your preparation. The key is to deploy them for minor circumstances that have a limited impact on the overarching story. To illustrate, I would not employ it to decide if the main villain is a secret enemy. But, I would consider using it to decide if the PCs reach a location just in time to see a key action takes place.

Empowering Collaborative Storytelling

Luck rolls also helps make players feel invested and create the feeling that the story is dynamic, evolving according to their choices immediately. It reduces the perception that they are merely pawns in a rigidly planned story, thereby enhancing the shared nature of storytelling.

This philosophy has historically been embedded in the game's DNA. Early editions were reliant on charts, which fit a playstyle focused on exploration. While modern D&D often focuses on plot-driven play, leading many DMs to feel they must prep extensively, this isn't always the required method.

Striking the Right Balance

Absolutely no problem with thorough preparation. Yet, equally valid nothing wrong with letting go and letting the dice to decide some things rather than you. Direction is a big aspect of a DM's job. We need it to manage the world, yet we can be reluctant to release it, at times when doing so can lead to great moments.

The core suggestion is this: Do not fear of letting go of the reins. Experiment with a little chance for inconsequential details. It may discover that the unexpected outcome is far more powerful than anything you would have planned in advance.

Douglas Parker
Douglas Parker

Lena is a seasoned automation engineer with over a decade of experience in designing and implementing control systems for various industries.