Battle or befriend more than 100 weird and alien life forms in this creature collection for the Starfinder Roleplaying Game! Every new world and space station comes with its own dangers, from strange new cultures to extraterrestrial predators to massive spacefaring organisms capable of battling starships. Inside this book, you'll find rules and ecological information for creatures from across the known worlds, plus exotic alien gear, complete magical polymorphing rules, and more. A robust selection of template grafts gives you the tools you need to populate any planet with environment-appropriate fauna, and racial rules for many of the new species let you be the alien! Want to play an intelligent, multi-legged centipede? An emotionless, mask-wearing mollusk? An uplifted bear? Explore the limits of your galaxy and your game with Starfinder Alien Archive 2!