Descended from the Queen is a system licensing program for games using the For the Queen system and For the Queen SRD.
Games using the system typically consist only of cards (either a physical deck or a print-and-play document formatted to print out cards).
Cards typically are either "Instruction Cards" or "Question Cards" (an X-Card also is used).
Game play involves players reading out the "Instruction Cards" in round-robin fashion, in numeric order - this establishes the basic (and very simple) rules for the game.
Players then read out the "Question Cards" in round-robin fashion, from a shuffled pile. The questions are answered, building the evolving narrative, and play continues through the final card (or, perhaps, ends earlier - depending on the narrative).