Thursday, June 6, 2019

On The Fly Design Testing

Two weeks ago, my daughter Grace said she wanted to try playing one of my games...

After I picked my jaw up off the floor and stopped crying tears of joy, she rolled up a superhero and I took her through a short adventure. She actually liked it.

Then, last week, she said she wanted to try the fantasy game, and she made an elf scout, and I made a dwarf myrmidon. We went through part of the introductory adventure from the core rules and had fun. She wanted to play again tonight...

I decided to play test a system that I have had on the back burner for years, and which I think I read about somewhere else, but I have no idea where (I am not claiming originality on this; I am sure one of you can point me to where I got it from).

Roll 2d6:
3+  Probably
5 + Likely
7+  Maybe
9+  Unlikely
11+Very Unlikely

A roll of 2 is always NO; 12 is always YES.

You build the dungeon on the fly by asking questions and rolling 2d6. Before you roll, you decide the likelihood of an event happening... Is there a door? (Maybe, so yes on a roll of 7 or better) If so, it it locked (probably, so yes on a roll of 3 or better). Is the lock trapped (unlikely, so yes on a roll of 9 or better). Once the door is open... is there a monster in here (Maybe). Does the monster have treasure (unlikely). Is there anything else interesting in the room (unlikely). Is it a magic pool (very unlikely)... and so it goes...

Here's the map of the adventure we created in this way. I planned NONE of this, but we ended up exploring an underground river behind a waterfall in elfin lands that used to be a dragon's lair. We found the bones of the dragon (long dead), were attacked by a pack of swimming rats, and encountered three water-spirit elves at the base of a 10' waterfall that attacked us but then gave us a figurine of wondrous power when they realized they were going to be destroyed. It was a great adventure that I never would have designed on my own, and as we went Grace started asking questions and deciding on things without my prompting, which was fun to see as well.


  1. Sounds like a variation of Mythic, also several other solo adventure systems use similar mechanic

  2. Original or not, this is a fantastic idea! I like how the shift in likelihood changes the die roll result ranges!