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As a DM, I usually shied away from significant use of luck during my tabletop roleplaying games. I preferred was for story direction and what happened in a game to be determined by character actions as opposed to pure luck. That said, I decided to change my approach, and I'm incredibly glad I did.

The Spark: Seeing a Custom Mechanic

A well-known podcast showcases a DM who often calls for "luck rolls" from the participants. He does this by picking a type of die and outlining consequences tied to the result. While it's fundamentally no unlike rolling on a random table, these get invented in the moment when a course of events lacks a predetermined resolution.

I decided to try this technique at my own table, primarily because it seemed novel and provided a change from my usual habits. The results were eye-opening, prompting me to think deeply about the perennial balance between pre-determination and randomization in a tabletop session.

A Memorable Session Moment

At a session, my party had just emerged from a large-scale conflict. Afterwards, a cleric character asked about two key NPCs—a sibling duo—had survived. In place of picking a fate, I handed it over to chance. I instructed the player to make a twenty-sided die roll. The stakes were: a low roll, both died; a middling roll, a single one would die; a high roll, they survived.

The die came up a 4. This resulted in a incredibly poignant scene where the characters found the remains of their friends, forever clasped together in their final moments. The group performed funeral rites, which was particularly powerful due to earlier story developments. As a parting reward, I improvised that the remains were suddenly transformed, revealing a spell-storing object. I rolled for, the bead's contained spell was perfectly what the group lacked to resolve another major quest obstacle. You simply orchestrate such serendipitous story beats.

Improving On-the-Spot Skills

This event led me to ponder if chance and making it up are in fact the beating heart of D&D. Although you are a meticulously planning DM, your skill to pivot may atrophy. Players frequently find joy in upending the best constructed narratives. Therefore, a skilled DM has to be able to think quickly and invent content on the fly.

Employing on-the-spot randomization is a great way to practice these talents without going completely outside your comfort zone. The key is to deploy them for low-stakes circumstances that don't fundamentally change the campaign's main plot. For instance, I would not employ it to determine if the main villain is a traitor. However, I might use it to decide whether the characters arrive right after a critical event unfolds.

Enhancing Shared Narrative

Spontaneous randomization also serves to make players feel invested and cultivate the sensation that the adventure is dynamic, evolving based on their actions immediately. It reduces the perception that they are merely pawns in a rigidly planned narrative, thereby bolstering the shared foundation of the game.

This approach has long been integral to the core of D&D. Early editions were filled with random tables, which suited a game focused on dungeon crawling. While modern D&D frequently emphasizes narrative and role-play, leading many DMs to feel they need exhaustive notes, that may not be the only path.

Striking the Right Balance

Absolutely no problem with thorough preparation. Yet, it's also fine no problem with relinquishing control and allowing the rolls to guide minor details instead of you. Control is a big part of a DM's job. We use it to manage the world, yet we often struggle to release it, even when doing so might improve the game.

My final recommendation is this: Don't be afraid of letting go of the reins. Try a little chance for smaller details. The result could find that the surprising result is significantly more rewarding than anything you would have pre-written in advance.