From publisher blurb:
Zeb's Fantasy Roleplaying System or ZeFRS is a reimagining of the original Conan© Role-Playing game written for TSR® by legendary game designer Dave "Zeb" Cook over a quarter of a century ago. Mark Krawec, with the permission of the original author, has brought this classic game back to life. And now, Evil DM Productions brings together ZeFRS and the latest edition of its critically acclaimed Legends of Steel campaign world to let you trample the kingdoms of Erisa beneath your sandaled feet!
Legends of Steel: ZeFRS Edition contains the complete Legends of Steel Campaign world and an LoS-adapted version of the ZeFRS rules engine.