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As a game master, I traditionally steered clear of significant use of chance during my D&D adventures. My preference was for the plot and session development to be shaped by player choice instead of random chance. However, I decided to try something different, and I'm incredibly pleased with the outcome.

The Spark: Watching a Custom Mechanic

A popular podcast features a DM who regularly requests "luck rolls" from the players. He does this by picking a specific dice and defining consequences contingent on the roll. While it's at its core no different from using a pre-generated chart, these are devised spontaneously when a course of events has no obvious resolution.

I opted to test this approach at my own session, mostly because it appeared engaging and presented a departure from my usual habits. The results were eye-opening, prompting me to reflect on the ongoing tension between pre-determination and randomization in a D&D campaign.

A Memorable In-Game Example

At a session, my group had concluded a massive fight. When the dust settled, a player inquired after two beloved NPCs—a sibling duo—had lived. Instead of deciding myself, I handed it over to chance. I told the player to roll a d20. The stakes were: a low roll, both were killed; a middling roll, a single one would die; on a 10+, they both lived.

The player rolled a 4. This triggered a profoundly emotional moment where the adventurers found the remains of their friends, still clasped together in their final moments. The cleric held a ceremony, which was particularly meaningful due to earlier roleplaying. In a concluding reward, I decided that the NPCs' bodies were strangely transformed, showing a magical Prayer Bead. By chance, the bead's magical effect was precisely what the group required to solve another pressing quest obstacle. It's impossible to orchestrate this type of perfect moments.

Honing On-the-Spot Skills

This experience caused me to question if chance and thinking on your feet are truly the core of D&D. Even if you are a prep-heavy DM, your ability to adapt may atrophy. Players reliably take delight in upending the best constructed plans. Therefore, a skilled DM has to be able to adapt swiftly and fabricate content in real-time.

Employing luck rolls is a excellent way to practice these talents without going completely outside your usual style. The key is to deploy them for minor situations that have a limited impact on the campaign's main plot. For instance, I wouldn't use it to establish if the king's advisor is a secret enemy. However, I could use it to decide whether the party reach a location moments before a critical event takes place.

Empowering Player Agency

Spontaneous randomization also serves to keep players engaged and cultivate the sensation that the adventure is responsive, shaping according to their choices as they play. It reduces the sense that they are merely characters in a DM's sole story, thereby enhancing the collaborative foundation of the game.

Randomization has historically been integral to the original design. The game's roots were reliant on charts, which fit a game focused on dungeon crawling. Although current D&D tends to prioritizes plot-driven play, leading many DMs to feel they require detailed plans, that may not be the only path.

Achieving the Right Balance

It is perfectly nothing wrong with thorough preparation. But, there is also nothing wrong with relinquishing control and letting the whim of chance to decide some things in place of you. Control is a big part of a DM's role. We require it to manage the world, yet we can be reluctant to release it, even when doing so might improve the game.

A piece of recommendation is this: Have no fear of relinquishing a bit of control. Try a little chance for inconsequential details. The result could find that the surprising result is infinitely more memorable than anything you might have planned by yourself.