From publisher blurb:
POLYHEDRAL DUNGEON is an ultralight modern take on old school roleplaying. Using the new and simple to use and extend POLYHEDRAL SYSTEM, you can have countless hours of fun delving into dungeons and stealing dragon’s hoards.
This game has been written not to supplant the original classic games that I personally love and enjoy so much myself, but to provide an alternative that can be run at a moment’s notice. It’s designed to be used for pick-up games, or at conventions, or when you suddenly find yourself needing to handle running a tabletop game for dozens of teens or adults who don’t want to spend time learning rules and making characters for game systems that have too many options and don’t make much sense out of the box for the uninitiated. Simply give them a character sheet, have them choose a Class, select some Talents, get some starting Gear, fill in the Schtick and a Quote, and they’re off adventuring. The system is also easy enough to be able to translate existing adventures and settings on-the-fly without much effort.
There are purposeful holes and gaps in the game. That’s by design, because it’s meant to be compact but mostly complete and playable. It doesn’t include rules for designing dungeons themselves apart from with broad strokes. What’s missing can be filled in by you, or others, from other games and supplements, or from your own head. Just follow this one piece of advice: if you don’t know something, channel The Old School Way and make a ruling. But just make it a fair one, and be consistent in its application.