Basic Roleplaying: Creatures collects animals, monsters, nonhumans, and nonplayer characters drawn from history, science fiction, fantasy, prehistory, mythology, and the modern world, allowing for any gamemaster to use them in any D100-based game. Inside, you'll find: Over 200 creatures, with chapeters on natural animals, dinosaurs and megafauna, fantasy creatures, summoned creatures, science fiction creatures such as aliens and robots, and nonplayer characters. Rules for modifying and customizing creatures and NPCs, familiars, making megafauna, harvesting creature parts, kaiju creation, summaries of relevant spot rules, guidance for building villains, and more. Lengthy entries on dragon, elrf, and giant heritages, and dwarf tribes, with rules on how to use them as player characters. Guidelines for using these creatures in other BRP-based games such as RuneQuest, Call of Cthulhu, and Pendragon. This sourcebook is designed for use with the Basic Roleplaying: Universal Game Engine core book as well as with other BRP-powered Games.