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In my role as a Dungeon Master, I historically avoided heavy use of luck during my Dungeons & Dragons games. I preferred was for narrative flow and what happened in a game to be guided by deliberate decisions instead of random chance. However, I decided to alter my method, and I'm very pleased with the outcome.

The Catalyst: Seeing a Custom Mechanic

A popular podcast features a DM who often requests "luck rolls" from the participants. The process entails picking a specific dice and assigning consequences based on the roll. It's at its core no different from rolling on a random table, these are devised spontaneously when a course of events has no obvious resolution.

I chose to experiment with this technique at my own session, primarily because it looked novel and offered a break from my standard routine. The outcome were remarkable, prompting me to reflect on the perennial tension between pre-determination and spontaneity in a tabletop session.

A Memorable Session Moment

In a recent session, my group had survived a city-wide fight. Afterwards, a cleric character inquired after two beloved NPCs—a sibling duo—had lived. In place of picking a fate, I handed it over to chance. I told the player to roll a d20. The stakes were: a low roll, both would perish; a middling roll, a single one succumbed; a high roll, they survived.

The die came up a 4. This resulted in a deeply emotional scene where the characters came upon the corpses of their friends, forever united in their final moments. The group conducted funeral rites, which was especially powerful due to prior story developments. As a final touch, I decided that the remains were miraculously restored, revealing a spell-storing object. I rolled for, the item's magical effect was perfectly what the group needed to solve another critical quest obstacle. One just plan this type of serendipitous story beats.

Honing On-the-Spot Skills

This experience led me to ponder if improvisation and making it up are in fact the essence of tabletop RPGs. Even if you are a prep-heavy DM, your skill to pivot can rust. Adventurers often find joy in ignoring the most detailed plots. Therefore, a good DM must be able to think quickly and fabricate scenarios on the fly.

Utilizing on-the-spot randomization is a great way to develop these skills without straying too much outside your preparation. The strategy is to deploy them for low-stakes decisions that won't drastically alter the campaign's main plot. As an example, I would avoid using it to determine if the central plot figure is a secret enemy. However, I would consider using it to determine if the PCs enter a room right after a key action takes place.

Empowering Collaborative Storytelling

Luck rolls also works to maintain tension and create the sensation that the game world is dynamic, evolving according to their choices as they play. It combats the sense that they are merely characters in a pre-written story, thereby bolstering the collaborative aspect of storytelling.

This approach has historically been part of the core of D&D. Original D&D were filled with encounter generators, which suited a playstyle focused on treasure hunting. Although current D&D frequently emphasizes story and character, leading many DMs to feel they must prep extensively, it's not necessarily the required method.

Striking the Sweet Spot

Absolutely nothing wrong with being prepared. But, it's also fine no issue with letting go and letting the rolls to guide minor details rather than you. Control is a major aspect of a DM's job. We use it to manage the world, yet we often struggle to cede it, even when doing so could be beneficial.

The core advice is this: Have no fear of letting go of the reins. Embrace a little chance for inconsequential outcomes. It may create that the surprising result is significantly more powerful than anything you might have planned on your own.