2004 · ソースブック（プレイを拡張するルール／オプション）

Acrohelion Campaign Setting

A fully illustrated D20 fantasy campaign setting depicting a dynamic world of human and nonhuman nations, ancient secrets, evolving conflicts, and distinctive cultures. It supports heroic, gritty, horror, action-oriented, and puzzle-solving styles of play, with background for locations ranging from the paladin realm of Aesios to the despotism of the Black Summoners and the honor-bound society of the insectoid Quaishi. The 284-page book includes six new player character races, two new 20-level classes, four prestige classes, new spells and feats, and 14 unusual monsters with complete statistics and ecological notes. Gamemasters receive adventure ideas, dangerous villains, and setting-specific magic and conflicts for campaigns focused on exploration, role-playing, and combat.