2012 · ソースブック（プレイを拡張するルール／オプション）
The Metamorphica
A system-agnostic collection of biological, psychic, and supernatural mutations for tabletop campaigns. Dice-based tables provide more than 650 mutations, along with procedures for creating creatures, aliens, demons, and mutant animals, humans, and plants. Guidance covers using mutations in campaigns ranging from horror and science fiction to fantasy and post-apocalyptic settings.
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。