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When I am a Dungeon Master, I historically steered clear of significant use of chance during my Dungeons & Dragons adventures. I tended was for the plot and session development to be shaped by character actions rather than pure luck. However, I decided to change my approach, and I'm truly happy with the result.

The Inspiration: Seeing a Custom Mechanic

An influential podcast showcases a DM who often requests "fate rolls" from the participants. He does this by selecting a specific dice and assigning possible results based on the result. While it's fundamentally no distinct from using a random table, these are devised in the moment when a course of events has no obvious outcome.

I chose to experiment with this technique at my own game, mainly because it looked novel and presented a departure from my normal practice. The results were eye-opening, prompting me to think deeply about the ongoing tension between pre-determination and spontaneity in a tabletop session.

An Emotional Story Beat

At a session, my group had survived a city-wide conflict. When the dust settled, a player asked about two friendly NPCs—a pair—had made it. Instead of choosing an outcome, I handed it over to chance. I asked the player to roll a d20. The possible results were: on a 1-4, both were killed; a middling roll, a single one would die; a high roll, they made it.

Fate decreed a 4. This resulted in a profoundly moving sequence where the party found the remains of their friends, forever holding hands in death. The group performed last rites, which was uniquely significant due to earlier story developments. In a concluding touch, I improvised that the remains were suddenly restored, containing a enchanted item. By chance, the item's magical effect was precisely what the group lacked to address another critical story problem. One just script such perfect coincidences.

Improving Your Improvisation

This event led me to ponder if chance and thinking on your feet are in fact the core of tabletop RPGs. Although you are a detail-oriented DM, your improvisation muscles need exercise. Groups often find joy in upending the best constructed plots. Therefore, a good DM has to be able to pivot effectively and create content in the moment.

Utilizing similar mechanics is a great way to practice these skills without venturing too far outside your preparation. The strategy is to use them for minor circumstances that don't fundamentally change the campaign's main plot. As an example, I wouldn't use it to determine if the king's advisor is a traitor. However, I could use it to determine whether the characters reach a location just in time to see a key action occurs.

Empowering Player Agency

This technique also works to make players feel invested and create the impression that the adventure is dynamic, shaping based on their choices in real-time. It reduces the feeling that they are merely pawns in a DM's sole script, thereby enhancing the collaborative nature of the game.

This philosophy has historically been part of the game's DNA. Early editions were filled with encounter generators, which made sense for a game focused on exploration. Although contemporary D&D often emphasizes narrative and role-play, leading many DMs to feel they need exhaustive notes, it's not necessarily the required method.

Striking the Right Balance

It is perfectly nothing wrong with being prepared. Yet, it's also fine nothing wrong with stepping back and letting the dice to guide minor details rather than you. Authority is a big part of a DM's role. We require it to manage the world, yet we frequently find it hard to release it, in situations where doing so can lead to great moments.

A piece of suggestion is this: Do not fear of temporarily losing the reins. Embrace a little randomness for inconsequential story elements. You might just find that the organic story beat is significantly more memorable than anything you would have scripted by yourself.