Battle Cats is a whimsical Tower Defense mobile game where players command an army of unique, stylized cats. These felines, each with distinct abilities and designs ranging from basic brawlers to powerful mythical beasts, march across various stages. The primary objective is to defend your own Cat Base while deploying units to destroy the enemy base, clashing with a diverse array of peculiar enemies, including dogs, hippos, and even aliens. Players progress by conquering new territories, earning experience to upgrade their Cat Units and base defenses, and collecting new and rarer cats through a Gacha system to expand their roster and strategic options.