"The first of all the Spycraft campaign settings. The world of Shadowforce Archer (SFA) is an Earth where mystical and psionic powers are real. A series of supplemental books that were released to support the SFA worldbook. Each book details one of the international Chambers of world. Each book has a different theme and includes new rules and agent options appropriate to the theme. The setting was discontinued at the beginning of 2005. Spycraft 2.0 contains many classes and feats that first appeared in the SFA line."