2009 · ソースブック（プレイを拡張するルール／オプション）
Mutational Evolution
This role-playing game supplement provides tools for building families of related mutants in a post-apocalyptic setting. It presents four sample families, including house sparrows, stinging nettles, feather shrubs, and giant yellowjackets, with more than 100 creatures spanning up to seven generations of mutation. Essays explain how to create similar mutant lineages, while family trees, new mutations, illustrations, and reference tables for poison and radiation support campaign development. The material is compatible with Mutant Future, Labyrinth Lord, and other games using Basic D&D rules.
特性／アスペクト制（性格がゲームプレイに影響する）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。