In a world devastated by the impact of a massive comet, mysterious lifeforms known as 'Xenos' bring humanity to the brink of extinction in "アセントプロトコル." Divided and facing the overwhelming power of the Xenos, humans seek survival through different paths.

Choose between the 'Underground People' who opt for a new foundation in the subterranean city of 'Geocity' or the 'Surface People' who worship the Xenos as new gods. As the leader of the EAC Special Mission Bureau in the massive underground city, embark on a quest with unique operatives to reclaim the stolen blue skies.

"Aセントプロトコル" by A-STARGAMES is a role-playing RPG app that offers a captivating story starting from the underground world. Command a new generation of operatives, utilize their distinct abilities, and engage in strategic battles to protect the underground from the followers of Xenos.