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When I am a Dungeon Master, I traditionally avoided heavy use of randomization during my D&D sessions. I preferred was for the plot and session development to be determined by character actions as opposed to pure luck. Recently, I opted to alter my method, and I'm very glad I did.

The Inspiration: Watching a Custom Mechanic

A popular streamed game features a DM who regularly requests "fate rolls" from the participants. This involves choosing a polyhedral and defining consequences contingent on the roll. This is essentially no distinct from consulting a pre-generated chart, these are created in the moment when a character's decision has no obvious resolution.

I chose to experiment with this approach at my own table, mainly because it seemed interesting and presented a departure from my usual habits. The outcome were remarkable, prompting me to reflect on the ongoing tension between planning and improvisation in a tabletop session.

An Emotional In-Game Example

At a session, my group had concluded a massive battle. Afterwards, a cleric character wondered if two beloved NPCs—a brother and sister—had survived. Instead of deciding myself, I let the dice decide. I told the player to roll a d20. The possible results were: on a 1-4, both would perish; a middling roll, only one succumbed; on a 10+, they survived.

The player rolled a 4. This triggered a profoundly emotional sequence where the adventurers discovered the corpses of their allies, still united in death. The group held a ceremony, which was especially significant due to previous character interactions. In a concluding touch, I chose that the NPCs' bodies were strangely restored, showing a enchanted item. I rolled for, the item's contained spell was exactly what the group required to solve another major story problem. It's impossible to script these kinds of magical moments.

Honing DM Agility

This incident led me to ponder if chance and making it up are actually the essence of tabletop RPGs. While you are a prep-heavy DM, your ability to adapt may atrophy. Groups frequently find joy in derailing the most detailed plots. Therefore, a good DM needs to be able to adapt swiftly and create details in real-time.

Employing similar mechanics is a great way to practice these skills without going completely outside your comfort zone. The trick is to apply them for small-scale situations that have a limited impact on the session's primary direction. As an example, I wouldn't use it to decide if the main villain is a traitor. Instead, I would consider using it to decide whether the characters arrive right after a critical event unfolds.

Strengthening Collaborative Storytelling

Spontaneous randomization also works to maintain tension and foster the feeling that the adventure is alive, progressing based on their choices immediately. It prevents the sense that they are merely actors in a DM's sole script, thereby strengthening the shared foundation of storytelling.

This approach has historically been integral to the core of D&D. Early editions were enamored with random tables, which suited a playstyle focused on exploration. Even though contemporary D&D often prioritizes plot-driven play, leading many DMs to feel they need exhaustive notes, it's not necessarily the only path.

Achieving the Right Balance

It is perfectly no issue with thorough preparation. However, it's also fine no issue with stepping back and allowing the whim of chance to determine certain outcomes instead of you. Control is a major part of a DM's role. We require it to manage the world, yet we can be reluctant to cede it, at times when doing so could be beneficial.

My final recommendation is this: Don't be afraid of letting go of your plan. Try a little randomness for inconsequential details. You might just discover that the unexpected outcome is significantly more rewarding than anything you might have planned by yourself.