Millistar Raiders is an Android simulation game developed by Super Planet. The game is set in the year 2317 of the Millistar calendar where the Dark Lord's seal is released, and the Pig Land is in danger. The player takes on the role of Kim Chun-mil, a low-ranking soldier who becomes an expedition warrior at the order of the Pig King.

In this exciting fantasy adventure, the player teams up with ordinary but extraordinary warriors like the Clown, Farmer, and Butcher to storm the Devildom with the 13 Heroes. The game is an Idle RPG where the player and heroes go on an expedition to the Devildom. Players can play in two modes, landscape and portrait, and clear endless stages to reach a new record.