DragonRaid is set in the parallel fantasy world of EdenAgain.  The decision to present DragonRaid in a fantasy format was based on the popular appeal of C.S. Lewis' Chronicles of Narnia and the enduring merit of John Bunyan's Pilgrim's Progress, both of which are classics of allegorical Christian fantasy literature. 

In DragonRaid the LightRaiders always fight against dragons, which are allegorical representations of
demons. The TwiceBorn also fight against Dark Creatures -- wayward beings who, like the demons, do not get a second chance. Dark Creatures personify various evils; for example, trolls spread an unrighteous "power enchantment" and like to push people around to get their way. As a result of dealing with the power-hungry trolls, DragonRaid players come to realize some of the many ways in which a hunger for power can cause us to sin in our thoughts and behavior. Even little children can decide that they would never want to act like the ugly trolls. 

Unlike the TwiceBorn, who wage continual war against the evil dragons, the Once Born on EdenAgain are dragon slaves--i.e., slaves to sin. But the Once Born are not to be killed, no matter how evil their behavior. Instead, the LightRaiders attempt to rescue the Once Born by telling them of the Great Liberation, which is the salvation purchased for them by the OverLord of Many Names. The Once Born who are thus rescued then join the ranks of the TwiceBorn, and may someday become LightRaiders themselves. 

DragonRaid WordRunes are verses and passages drawn from the Sacred Scrolls, which is the allegorical name for the Bible. A WordRune is a powerful saying (rune) from the Word of God, and occasionally these WordRunes do spectacular things. But as players advance through the
DragonRaid adventures, WordRunes take on applications much more closely related to the actual meaning of the Scriptures in real life.