Slaine - The Role Playing Game of Celtic Heroes
A fantasy RPG set in Tir Nan Og¸ a land of ancient Celtic legends mixed with prehistoric fact¸ an adaptation of the comic book series. The PCs are members of the Tribes of the Earth Goddess¸ called on to raid or war against rival tribes¸ quest after ancient treasures¸ or defend their lands against invading sea-devils. The rules are a variant of the D20 System from 3rd edition D&D¸ and require the core D&D rules for character creation and combat¸ as well as many skill and feat descriptions. It uses an alternate magic system where characters pay in ""Earth Points"" for spells cast¸ and spells are broken down according to their cost instead of level. - A description from https://darkshire.net/jhkim/rpg/encyclopedia/ with kind permission of John H. Kim"