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As a Dungeon Master, I historically steered clear of significant use of randomization during my Dungeons & Dragons games. My preference was for the plot and what happened in a game to be shaped by character actions instead of random chance. Recently, I opted to change my approach, and I'm truly pleased with the outcome.

The Inspiration: Watching 'Luck Rolls'

A popular podcast utilizes a DM who frequently requests "luck rolls" from the participants. The process entails choosing a type of die and defining possible results contingent on the roll. While it's at its core no distinct from consulting a pre-generated chart, these are devised in the moment when a character's decision has no clear outcome.

I chose to experiment with this technique at my own session, mostly because it seemed interesting and provided a departure from my usual habits. The results were eye-opening, prompting me to reflect on the perennial tension between preparation and spontaneity in a D&D campaign.

An Emotional Story Beat

During one session, my party had survived a large-scale battle. Afterwards, a player inquired after two beloved NPCs—a pair—had survived. Rather than choosing an outcome, I let the dice decide. I asked the player to make a twenty-sided die roll. The possible results were: a low roll, both were killed; on a 5-9, a single one would die; on a 10+, they survived.

The player rolled a 4. This led to a profoundly emotional scene where the adventurers found the corpses of their companions, still clasped together in death. The party held a ceremony, which was particularly meaningful due to earlier story developments. In a concluding reward, I improvised that the forms were strangely transformed, revealing a magical Prayer Bead. By chance, the bead's contained spell was exactly what the party needed to address another major situation. It's impossible to script these kinds of magical story beats.

Sharpening DM Agility

This event caused me to question if randomization and thinking on your feet are in fact the core of D&D. While you are a prep-heavy DM, your ability to adapt can rust. Players frequently find joy in upending the best constructed plots. Therefore, a effective DM needs to be able to think quickly and invent scenarios in real-time.

Employing luck rolls is a great way to train these abilities without going completely outside your comfort zone. The key is to apply them for low-stakes situations that don't fundamentally change the campaign's main plot. To illustrate, I would avoid using it to decide if the main villain is a secret enemy. Instead, I could use it to determine if the characters arrive moments before a key action takes place.

Strengthening Player Agency

Spontaneous randomization also works to keep players engaged and cultivate the sensation that the game world is responsive, progressing in reaction to their actions as they play. It prevents the feeling that they are merely pawns in a pre-written script, thereby enhancing the collaborative nature of roleplaying.

This philosophy has long been integral to the game's DNA. Original D&D were enamored with encounter generators, which fit a game focused on dungeon crawling. Although current D&D tends to prioritizes plot-driven play, leading many DMs to feel they must prep extensively, that may not be the only path.

Achieving the Right Balance

There is absolutely no issue with doing your prep. However, it's also fine no issue with letting go and letting the whim of chance to determine certain outcomes in place of you. Direction is a significant part of a DM's role. We require it to run the game, yet we often struggle to release it, even when doing so can lead to great moments.

The core suggestion is this: Don't be afraid of temporarily losing control. Experiment with a little improvisation for smaller details. It may create that the organic story beat is far more powerful than anything you could have pre-written by yourself.