From the Back of the Book:
The Metamorphica is a collection of biological, psychic, and supernatural mutations, all grouped into tables so results can be randomly selected using dice, this book is a system-agnostic resource for campaigns for such diverse genres as dark fantasy, four-coloured comic book, post-apocalyptic, modern horror, science fiction, transhumanism, and weird high fantasy.
The Metamorphica contains:
- Over 650 individual mutations, all with their own descriptions.
- Physical and mental mutations, as psychic and supernatural powers.
- Several different types of mutation-generating tables.
- Lengthy random creature tables.
- Procedures for using mutations in four different campaign types.
- Procedures for creating aliens and demons.
- Procedures for creating mutant animals, humans, and plants.