Earthdawn Core Rules
"A dark fantasy RPG set in a prehistoric mythic era of the world of Barsaive (a parallel Earth)¸ where various ""Horrors"" have destroyed or corrupted most of the world. From strongholds (""kaers"")¸ the people are slowly reclaiming the land from these Horrors. Races include elves¸ dwarves¸ orks¸ and trolls as well as windling¸ obsidimen¸ and lizardmen. It uses a combined class/skill based system. Resolution is by a ""step-die"" roll vs difficulty: skill + modifiers on a universal chart determines your die roll (d4¸d6¸d8¸etc.). - A description from https://darkshire.net/jhkim/rpg/encyclopedia/ with kind permission of John H. Kim"