Honkai: Star Rail is an upcoming free-to-play 3D role-playing video game developed and published by HoYoverse. It is the second installment in the Honkai series, using brand new characters along with alternate versions of existing characters from Honkai Impact 3rd.
It is a fantasy role-playing video game in which players control one of up to four characters that make up a team. Elements of open-world and dungeon exploration are present, focusing on turn-based strategic combat.