From radioactive ruins, ancient laboratories, and perhaps even the depths of space, they come: monstrous mutants to challenge those who would build a new future out of the ruins of the old. The wastelands of Mutant Crawl Classics harbor many dangers and now The Book of Monstrous Mutants offers even more to test your players.

From atomic snails to microplastic algae clouds to the feared radium wolves, this supplement contains more than 20 new adversaries for your MCC campaign. While intended for use with the Mutant Crawl Classics RPG, the creatures in this book can easily be introduced into any Dungeon Crawl Classics and Xcrawl Classics with little difficulty.