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

In my role as a DM, I usually shied away from extensive use of randomization during my Dungeons & Dragons adventures. My preference was for story direction and session development to be shaped by player choice as opposed to random chance. Recently, I chose to try something different, and I'm very happy with the result.

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

The Inspiration: Observing 'Luck Rolls'

A popular actual-play show utilizes a DM who often asks for "chance rolls" from the players. He does this by picking a polyhedral and outlining possible results based on the roll. While it's at its core no different from rolling on a random table, these are created in the moment when a course of events doesn't have a clear outcome.

I chose to experiment with this method at my own game, mostly because it appeared interesting and presented a break from my usual habits. The experience were eye-opening, prompting me to reconsider the ongoing balance between planning and randomization in a tabletop session.

An Emotional Session Moment

During one session, my party had survived a massive fight. Afterwards, a cleric character asked about two key NPCs—a brother and sister—had survived. Instead of choosing an outcome, I let the dice decide. I asked the player to make a twenty-sided die roll. The stakes were: on a 1-4, both would perish; a middling roll, only one would die; on a 10+, they both lived.

The player rolled a 4. This triggered a incredibly moving moment where the party found the corpses of their friends, forever holding hands in their final moments. The group conducted a ceremony, which was uniquely powerful due to prior roleplaying. In a concluding gesture, I decided that the remains were suddenly restored, containing a magical Prayer Bead. By chance, the bead's magical effect was exactly what the group required to address another critical situation. One just orchestrate this type of perfect coincidences.

A game master running a lively tabletop session with a group of participants.
An experienced DM facilitates a game requiring both planning and improvisation.

Improving DM Agility

This experience led me to ponder if chance and making it up are truly the core of tabletop RPGs. Even if you are a detail-oriented DM, your skill to pivot can rust. Adventurers reliably find joy in derailing the most detailed plots. Therefore, a skilled DM must be able to think quickly and create scenarios on the fly.

Using similar mechanics is a great way to practice these talents without going completely outside your comfort zone. The key is to deploy them for small-scale situations that have a limited impact on the overarching story. For instance, I would avoid using it to determine if the central plot figure is a traitor. However, I could use it to decide whether the PCs arrive moments before a major incident unfolds.

Empowering Player Agency

Spontaneous randomization also helps keep players engaged and foster the sensation that the adventure is responsive, evolving in reaction to their decisions in real-time. It reduces the feeling that they are merely actors in a DM's sole script, thereby strengthening the collaborative foundation of the game.

This approach has always been part of the original design. The game's roots were enamored with encounter generators, which made sense for a playstyle focused on treasure hunting. Although modern D&D tends to emphasizes narrative and role-play, leading many DMs to feel they need exhaustive notes, it's not necessarily the only path.

Finding the Sweet Spot

There is absolutely no issue with thorough preparation. Yet, it's also fine no issue with letting go and permitting the rolls to guide minor details instead of you. Direction is a significant factor in a DM's role. We use it to facilitate play, yet we frequently find it hard to give some up, at times when doing so might improve the game.

A piece of advice is this: Do not fear of relinquishing a bit of the reins. Try a little chance for smaller story elements. You might just create that the organic story beat is significantly more memorable than anything you could have scripted by yourself.

Danielle Peterson
Danielle Peterson

A tech enthusiast with over a decade of experience in software development and betting systems innovation.