Character Packs are in-game purchasable packs that allow you to unlock animals to play as.
The Packs are:
Amica Packs
Amica Starter:140$
Amica Advanced:270$
Amica Master:510$
Fera Packs
Fera Starter:200$
Fera Advanced:380$
Fera Master:720$
Parvus Packs
Parvus Starter:120$
Parvus Advanced:230$
Parvus Master:430$
Robus Packs
Robus Starter:100$
Robus Advanced:190$
Robus Master:360$