2003 · ソースブック（プレイを拡張するルール／オプション）

Blood and Vigilance

This sourcebook adapts the Modern d20 rules for superhero adventures, covering origins such as alien heritage, cybernetic enhancement, mutation, and scientific experimentation. It adds superhero classes including Acrobat, Brick, Energy Projector, Psychic, and Speed Demon, along with a power system for extraordinary abilities and disadvantages that impose meaningful limits. A gamemastering chapter supports gritty, street-level, four-color, and cosmic campaigns, with campaign models, pregenerated NPCs, and adventure hooks.