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In my role as a Dungeon Master, I usually avoided significant use of randomization during my Dungeons & Dragons sessions. I tended was for the plot and what happened in a game to be guided by deliberate decisions as opposed to random chance. That said, I opted to change my approach, and I'm incredibly pleased with the outcome.

The Spark: Watching 'Luck Rolls'

A well-known podcast utilizes a DM who frequently asks for "chance rolls" from the participants. He does this by choosing a specific dice and defining possible results tied to the result. This is essentially no unlike consulting a pre-generated chart, these are created in the moment when a character's decision lacks a clear resolution.

I opted to test this method at my own session, mostly because it appeared novel and presented a departure from my normal practice. The outcome were remarkable, prompting me to reflect on the ongoing balance between preparation and randomization in a D&D campaign.

An Emotional Story Beat

During one session, my players had just emerged from a large-scale battle. When the dust settled, a player asked about two friendly NPCs—a brother and sister—had survived. Rather than deciding myself, I asked for a roll. I instructed the player to roll a d20. The possible results were: on a 1-4, both died; on a 5-9, only one would die; on a 10+, they survived.

The die came up a 4. This led to a deeply emotional moment where the characters discovered the bodies of their allies, forever clasped together in their final moments. The group held funeral rites, which was uniquely meaningful due to earlier roleplaying. In a concluding reward, I improvised that the remains were suddenly restored, revealing a enchanted item. By chance, the item's contained spell was precisely what the group lacked to resolve another critical quest obstacle. You simply script this type of perfect story beats.

Improving DM Agility

This experience led me to ponder if chance and making it up are truly the core of this game. Although you are a meticulously planning DM, your skill to pivot may atrophy. Groups reliably take delight in ignoring the most carefully laid plots. Therefore, a skilled DM has to be able to think quickly and create scenarios in the moment.

Utilizing similar mechanics is a excellent way to develop these talents without straying too much outside your preparation. The strategy is to apply them for small-scale decisions that have a limited impact on the session's primary direction. For instance, I wouldn't use it to determine if the king's advisor is a traitor. However, I could use it to decide whether the PCs enter a room just in time to see a key action occurs.

Enhancing Player Agency

This technique also works to make players feel invested and create the feeling that the adventure is dynamic, progressing according to their actions immediately. It reduces the perception that they are merely actors in a rigidly planned script, thereby bolstering the collaborative aspect of storytelling.

This approach has long been part of the original design. Early editions were filled with encounter generators, which fit a game focused on dungeon crawling. Although contemporary D&D frequently emphasizes plot-driven play, leading many DMs to feel they need exhaustive notes, that may not be the only path.

Achieving the Healthy Equilibrium

There is absolutely nothing wrong with doing your prep. Yet, it's also fine nothing wrong with letting go and letting the whim of chance to decide some things rather than you. Direction is a big factor in a DM's responsibilities. We use it to run the game, yet we can be reluctant to release it, at times when doing so can lead to great moments.

A piece of advice is this: Have no fear of temporarily losing control. Experiment with a little improvisation for smaller story elements. It may create that the organic story beat is significantly more rewarding than anything you would have pre-written on your own.