A series of digest-sized zines, the Gnydron Supplements feature new rules, classes, spells, and monsters inspired by classic adventure gaming. They are setting-agnostic, and the content can be used in any campaign. Compatible with the Basic/Expert rules and Old-School Essentials.
This is a companion discussion topic for the original entry at https://rpg-trader.com/products/3510/gnydron-supplement-2