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In my role as a Dungeon Master, I traditionally shied away from heavy use of randomization during my Dungeons & Dragons games. I preferred was for narrative flow and session development to be guided by character actions instead of random chance. Recently, I opted to try something different, and I'm very glad I did.

The Inspiration: Seeing a Custom Mechanic

A well-known podcast features a DM who often asks for "chance rolls" from the players. This involves picking a polyhedral and assigning potential outcomes based on the result. While it's fundamentally no different from using a pre-generated chart, these are devised on the spot when a player's action lacks a obvious resolution.

I chose to experiment with this approach at my own table, mostly because it looked interesting and presented a change from my normal practice. The results were fantastic, prompting me to think deeply about the often-debated dynamic between preparation and spontaneity in a tabletop session.

An Emotional In-Game Example

During one session, my party had concluded a large-scale conflict. Later, a cleric character inquired after two key NPCs—a brother and sister—had lived. Instead of choosing an outcome, I let the dice decide. I told the player to roll a d20. The possible results were: a low roll, both were killed; on a 5-9, only one succumbed; a high roll, they both lived.

Fate decreed a 4. This resulted in a incredibly emotional scene where the party found the remains of their friends, still united in their final moments. The cleric performed last rites, which was uniquely powerful due to earlier character interactions. In a concluding gesture, I decided that the forms were miraculously restored, showing a spell-storing object. I rolled for, the item's magical effect was precisely what the party lacked to resolve another major story problem. One just script such magical story beats.

Sharpening Your Improvisation

This incident led me to ponder if randomization and spontaneity are actually the essence of tabletop RPGs. While you are a detail-oriented DM, your improvisation muscles may atrophy. Players often find joy in derailing the best constructed narratives. Therefore, a skilled DM must be able to pivot effectively and fabricate details in the moment.

Using on-the-spot randomization is a fantastic way to develop these skills without straying too much outside your comfort zone. The trick is to use them for small-scale decisions that don't fundamentally change the campaign's main plot. For instance, I would not employ it to establish if the main villain is a traitor. But, I might use it to decide whether the PCs enter a room right after a key action occurs.

Strengthening Collaborative Storytelling

This technique also serves to make players feel invested and create the sensation that the adventure is dynamic, evolving according to their choices in real-time. It combats the sense that they are merely actors in a pre-written story, thereby enhancing the shared aspect of the game.

This philosophy has always been embedded in the core of D&D. Early editions were enamored with random tables, which suited a playstyle focused on treasure hunting. Although current D&D often emphasizes story and character, leading many DMs to feel they must prep extensively, this isn't always the required method.

Striking the Sweet Spot

Absolutely no problem with being prepared. But, there is also no problem with stepping back and allowing the dice to decide some things in place of you. Direction is a major factor in a DM's responsibilities. We need it to run the game, yet we frequently find it hard to cede it, even when doing so might improve the game.

My final recommendation is this: Do not fear of temporarily losing the reins. Try a little chance for minor story elements. You might just create that the unexpected outcome is significantly more rewarding than anything you might have pre-written on your own.