The Packs!! Companion is chock-full of material for the Packs! roleplaying game wherein players slip into a rat's fur to explore the recesses of the Ratlair on swift paws. Dangerous times lie ahead as new vicious creatures like the Many-Eyes or the Stripeskulls have taken residence in the abandoned aisles. New hordes like the Daredevils and Wild Ones will attempt to even the scales, but as we all know, the greatest dangers comes from within.
The Packs!! Companion features new rules for the Ratmaster as well, such as new poisons and diseases, alternate rules, or monster tricks. Also included is an adventure and a new background for those who want to play Packs! ... in Space!