Drakar och Demoner Expert

Drakar och Demoner Expert is a Swedish role playing game from 1985. It was released as an expansion set to the 1984-1987 versions of the Swedish staple RPG "Drakar och Demoner", but was in its essence a self-contained system; it replaced the percentile dice with a d20 and changed rules enough to separate it from the Basic Roleplaying System. The rulebook itself is stand-alone and most of the modules released from 1985 to 1991 was for the Expert system, thus this is considered to be a separate RPG.