우주소녀 키우기: 방치형 RPG, developed by RPG Union, is a simulation game available on Android. The game is about protecting humanity from the rebellion of AI robots with the help of Cosmic girl Luna. The game is an easy idle action RPG that can be operated directly with your fingertips. It offers super-fast growth and speedy stage progression for players.

In 우주소녀 키우기: 방치형 RPG, players can enjoy various skills unlocked with weapons. The game offers various action skills and summoning skills that attack numerous enemies with a wide range. Players can awaken their skills and enjoy more powerful and splendid gameplay. Additionally, Busterbot gets stronger as it evolves, and players can meet powerful Busterbots they've never experienced before. Battle with drones and play strategically by combining them. The game offers exciting strategy play before tier promotion, where the higher the rank, the stronger the Cosmic Girls. Lastly, the game has higher rewards as players grow, and they can challenge various dungeons and earn rewards.