Ruins of Symbaroum Gamemaster's Guide

Aside from the base core rules referenced in the 5E OGL, the Ruins of Symbaroum game line contains everything you need to create characters and set out to explore the world of Symbaroum.

To emphasize the dark fantasy nature of the setting, new rules for traveling and rests, social challenges, and magic are introduced. Regarding magic, wielders of mystical powers cannot avoid being affected by the ever-present threat of Corruption — the gathering of darkness to each character’s Shadow which, if left untended, can manifest as terrible physical transformations and even the eventual loss of the character entirely, as Corruption consumes them mentally and physically.