Though the name of this ruleset was later changed to Stormbringer, it's actually a new roleplaying game set in the world of the Young Kingdoms, totally rebuilt from the ground-up. It shares BRP roots with the original, and thus there's some compatibility, but there's a huge amount of change too.

This is a dark fantasy roleplaying game, set in the Young Kingdoms. Rules for combat and battle-magic-like spells take center stage, and as with any Elric!-based game, there's rules for demons too.