Drakar och Demoner was a huge hit in Sweden, where it introduced many people to roleplaying.
The first version were published by Äventyrsspel and later Target Games.
From the first published adventures they created the game world Ereb Altor.
In version five they started using the new game world called Chronopia.
In version six (from Riotminds) the game world is changed to using creatures and monsters based on Scandinavian folklore instead of the standard fantasy monsters.
A modern-day horror RPG, where the PCs are demonic spirits who have been incarnated in human bodies within the "World of Darkness" setting of Vampire: The Masquerade and other games.
The demons are partly sympathetic in that they fought against God to empower humanity.
Demons roam about the world, and can attempt to move in on towns which have given way to sin.