Archive for January 22nd, 2010


The Die is Cast: Random Tables for Fun and Profit

Random tables are a big part of the flavor of old-school D&D. Early editions of the game are packed with all manner of charts, tables and sub-tables to determine random results for treasure, wandering monsters and more. Who can forget the Potion Miscibility Table or the Harlot Encounter Table? There’s even a set of tables for randomly creating an entire dungeon! Gary Gygax clearly loved making tables, and I’m finding that it’s still a fun thing to do.

Why would you want to use a randomizer for anything other than task resolution? One good reason: Impromptu tables give the DM an opportunity to be surprised by what’s coming up, just like the players.

Example: At the end of a previous session of my Glantri game, the medium Erwan Roparzh was captured by orcs while the rest of the party fled. I wasn’t sure what would happen to Erwan, but it was important to resolve. Aside from the party’s interest in rescuing him, we’d already determined that as a part of his special ability, his death would unleash a demon. If he died and the demon emerged, that would have a big impact on what resistance the party faced on their return.

So I scribbled up a table:

What happens to Erwan Roparzh? Roll 1d4:

    1: He is killed on the spot. The demon comes forth! 4d6 orcs are killed. Roll 1d4. (1: Troll kills demon. 2: Troll and orcs drive demon into wilderness. 3: Troll is defeated and hides. 4: Troll is killed.)
    2: He is kept prisoner; they are fattening him up for a feast! 50% chance that Gnormok, the goblin trader, leaves the area with Erwan’s spellbook.
    3: He escapes in the confusion. Orcs are dumb!
    4: Gnormok buys him from the orcs and takes him south to be sold as a slave.

I rolled a 1: the ideal result for the party! The orc tribe lost 17 orcs that day and their pet troll was badly burned. This had an enormous affect on play! I also got to be pleasantly surprised; I like it when the party does well, but I don’t like to feel that I’m making it too easy.

The second reason for making up your own tables may be a more important one: Impromptu tables help to keep the DM from getting into a rut.

For instance, if I’m not paying attention, my NPCs tend to be wary and taciturn. So I use the NPC random personality trait charts found in modules B1 and B2. Now, if the roll indicates that a hireling is Cheerful, Talkative (which comes up a lot), Friendly or Trusting, well, now I have to play the NPC that way. The game world feels a little more real, play has more variety to it, and I don’t have to do any pre-planning to break out of my rut.

This may sound like a lot of effort. But you don’t need to write complicated tables or even memorize all the weird charts in the back of the 1e AD&D DMG. Odds are that you already make up your own tables in your head!

For instance, you may roll a die during combat to see who a monster attacks. (“Okay, I’m rolling a d8. Boarface is shouting at the beast to attract it’s attention; it attacks him on a 1-4. Gaël just hit it with a torch, again; it attacks him on a 5-7. And Albrecht the NPC happens to be standing in range, so it attacks him on an 8.”) You haven’t written anything down, but you’re still using an impromptu table!

In last night’s session, when the party entered the ruined town of Mienville in search of loot, I needed to know where Erwan’s demon went after it chewed on the orcs. As per Robin’s Laws, I could have thought deeply about which options were the most interesting, most likely, most surprising, and so forth, and balanced all of the factors to see what would work best for the adventure. But I wanted to be surprised, and I didn’t want to stop the game while I calculated the options. So I rolled a d8 to see which part of the town it had wandered into (1=north, 2=northwest, etc). Quick and easy, and when the PCs didn’t cross paths with the demon, I didn’t feel that I was being soft on them.

That’s a good feeling!

Past Adventures of the Mule

January 2010
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