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As a DM, I usually avoided extensive use of luck during my D&D adventures. My preference was for the plot and session development to be shaped by player choice rather than the roll of a die. That said, I decided to change my approach, and I'm very pleased with the outcome.

The Spark: Observing an Improvised Tool

A popular actual-play show utilizes a DM who often asks for "chance rolls" from the players. The process entails picking a type of die and outlining consequences contingent on the roll. It's essentially no unlike rolling on a random table, these are devised on the spot when a course of events doesn't have a obvious outcome.

I decided to try this approach at my own session, mainly because it seemed interesting and presented a departure from my standard routine. The results were eye-opening, prompting me to think deeply about the ongoing dynamic between pre-determination and improvisation in a tabletop session.

A Memorable In-Game Example

In a recent session, my party had survived a massive conflict. Afterwards, a player wondered if two friendly NPCs—a sibling duo—had lived. Rather than choosing an outcome, I handed it over to chance. I instructed the player to roll a d20. The possible results were: a low roll, both died; a middling roll, a single one would die; on a 10+, they survived.

The player rolled a 4. This resulted in a deeply poignant scene where the adventurers discovered the corpses of their companions, forever united in death. The cleric held a ceremony, which was uniquely significant due to earlier story developments. As a parting reward, I chose that the remains were strangely transformed, containing a magical Prayer Bead. I rolled for, the item's contained spell was precisely what the group required to solve another major story problem. One just orchestrate these kinds of serendipitous coincidences.

Sharpening Your Improvisation

This experience led me to ponder if chance and spontaneity are in fact the beating heart of tabletop RPGs. Although you are a prep-heavy DM, your ability to adapt may atrophy. Groups frequently find joy in ignoring the most detailed narratives. Therefore, a effective DM must be able to think quickly and invent details in real-time.

Employing luck rolls is a great way to practice these talents without venturing too far outside your usual style. The strategy is to use them for low-stakes decisions that won't drastically alter the session's primary direction. To illustrate, I would not employ it to determine if the king's advisor is a secret enemy. Instead, I might use it to decide if the party arrive moments before a key action takes place.

Enhancing Player Agency

Luck rolls also serves to make players feel invested and create the sensation that the game world is alive, evolving based on their decisions immediately. It combats the feeling that they are merely characters in a DM's sole script, thereby bolstering the shared foundation of the game.

This approach has long been integral to the original design. Original D&D were enamored with charts, which fit a game focused on treasure hunting. While contemporary D&D tends to emphasizes plot-driven play, leading many DMs to feel they need exhaustive notes, this isn't always the best approach.

Striking the Right Balance

There is absolutely no problem with being prepared. Yet, it's also fine nothing wrong with stepping back and allowing the rolls to guide minor details instead of you. Direction is a significant part of a DM's responsibilities. We use it to manage the world, yet we frequently find it hard to release it, at times when doing so could be beneficial.

My final advice is this: Do not fear of letting go of the reins. Experiment with a little randomness for inconsequential outcomes. You might just create that the unexpected outcome is infinitely more memorable than anything you could have scripted in advance.