Gatto is a Play-to-Earn (P2E) game hosted on the Telegram Mini Apps platform that allows players to earn Toncoin ($TON) and the in-game currency $GTON through gameplay and competitions. Players manage virtual pets called "Gattomons," which can participate in various activities such as caring, feeding, and engaging in competitions like races and swims. Rarer pets, such as those of Legendary or Mythic rarity, increase the chances of earning Toncoin and other valuable in-game rewards.

The game also offers a competitive Stadium mode, where pets compete in leagues to win $TON based on their league and performance. Earnings are boosted during specific in-game events, such as magic storms. Additionally, pets can be converted into NFTs, enabling players to trade or sell them on platforms like GetGems.