In Idling Idol, players engage in core mechanics that revolve around training idols, collecting fans, and managing resources. Players can name their idol group, select members through auditions, and oversee their training and performances to maximize their success.

The storyline of Idling Idol centers on the journey of aspiring idols as they strive to achieve their dream of holding a grand "Dome Live" concert. Players must navigate the challenges of idol management while ensuring their idols remain healthy and motivated.

Idling Idol stands out with its randomly generated idols, each with unique names, appearances, and stats, ensuring that no two gameplay experiences are the same. The game also features dynamic events and seasonal training effects, requiring players to adapt their strategies continuously.