The first edition ("Version 1") of Dungeons Daring presents a somewhat derivative fantasy system built on the basic mechanics of the d20 System. The second edition ("Version 2") is expanded and customized, clearly moving away from a straightforward d20 System implementation with character Skills being emphasized and character Profession (formerly, Class) being de-emphasized.
Each of the 1st and 2nd Editions of the game generally are comprised of three core rulebooks - Players Guide, Gamemasters Guide, and Creature Guide (a monster manual). Both editions also enjoy an open content, monolithic Content Reference Guide (system reference document).
Both editions enjoy additional support materials provided in various combinations in download archives.
The 2nd Edition also is built around the default setting of Jörðgarð.