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When I am a Dungeon Master, I traditionally shied away from heavy use of randomization during my Dungeons & Dragons sessions. My preference was for the plot and what happened in a game to be guided by character actions as opposed to pure luck. Recently, I decided to change my approach, and I'm truly pleased with the outcome.

The Inspiration: Watching an Improvised Tool

A popular actual-play show utilizes a DM who often asks for "chance rolls" from the adventurers. He does this by selecting a type of die and assigning consequences contingent on the result. While it's at its core no different from using a random table, these get invented in the moment when a course of events has no predetermined conclusion.

I decided to try this method at my own session, mostly because it appeared novel and offered a departure from my standard routine. The results were remarkable, prompting me to think deeply about the often-debated dynamic between pre-determination and improvisation in a tabletop session.

An Emotional Session Moment

During one session, my players had just emerged from a large-scale fight. Afterwards, a cleric character asked about two friendly NPCs—a sibling duo—had lived. Rather than picking a fate, I let the dice decide. I told 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; on a 10+, they survived.

Fate decreed a 4. This led to a profoundly moving sequence where the characters discovered the corpses of their friends, still united in their final moments. The party performed last rites, which was especially powerful due to previous roleplaying. In a concluding reward, I improvised that the NPCs' bodies were strangely restored, containing a spell-storing object. I randomized, the bead's magical effect was precisely what the group required to resolve another critical story problem. It's impossible to orchestrate such perfect coincidences.

Honing DM Agility

This experience made me wonder if chance and spontaneity are actually the beating heart of D&D. Although you are a prep-heavy DM, your improvisation muscles may atrophy. Players reliably take delight in upending the most carefully laid plots. Therefore, a good DM needs to be able to pivot effectively and invent details in the moment.

Using luck rolls is a excellent way to practice these skills without straying too much outside your preparation. The key is to deploy them for small-scale circumstances that won't drastically alter the campaign's main plot. For instance, I wouldn't use it to establish if the central plot figure is a traitor. Instead, I would consider using it to decide whether the party reach a location right after a critical event occurs.

Empowering Collaborative Storytelling

Luck rolls also works to keep players engaged and foster the feeling that the adventure is dynamic, progressing according to their actions as they play. It prevents the sense that they are merely actors in a rigidly planned script, thereby enhancing the shared foundation of storytelling.

Randomization has long been integral to the game's DNA. Early editions were filled with random tables, which fit a playstyle 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 best approach.

Striking the Right Balance

Absolutely nothing wrong with doing your prep. But, there is also nothing wrong with relinquishing control and letting the dice to guide minor details instead of you. Authority is a significant factor in a DM's job. We need it to run the game, yet we frequently find it hard to give some up, at times when doing so could be beneficial.

A piece of recommendation is this: Don't be afraid of temporarily losing control. Embrace a little randomness for smaller details. It may create that the organic story beat is significantly more powerful than anything you could have planned on your own.