Moshi Monsters is an online game that allows players to adopt and care for virtual pets called Moshi Monsters. Each player chooses a unique monster and can customize its appearance, decorate its home, and play various mini-games to earn Rox, the in-game currency. The game was designed for children and aimed to promote problem-solving and creativity. Players can also interact with friends, visit their homes, and complete puzzles to unlock new features. Launched in 2008, Moshi Monsters gained popularity for its engaging gameplay and educational elements before being discontinued in 2019.