2014 · ソースブック（プレイを拡張するルール／オプション）
Mythic Aliens: The Astori
This fantasy roleplaying supplement introduces the astori, a mysterious race of energy beings who have ascended from a human-like existence to a higher plane. Insular yet curious about the wider cosmos, astori send exemplars to study other worlds, peoples, and cultures. The book details astori history and society, provides rules for astori player characters, and includes feats suited to their innate mythic power. It also presents complete statistics for a mythic astori exemplar for use in mythic or non-mythic campaigns.
スキルベース（スキルを購入または獲得）属性／ステータス制（STR、CON、PERなど）レベル制（XPを獲得してレベルアップ）
ゲーム情報（人数、プレイ時間、対象年齢、クレジット）の出典：BoardGameGeek。