The year is 2030. Several explosions suddenly go off in the nuclear research facility known as “LABO.” The city sends in “Sirius,” an elite rescue squad, to deal with the situation. But when LABO’s nuclear reactor melts down, sending the facility into lockdown–with members of Sirius and survivors still trapped inside. 

The only key to survival lies your hands with the Senses Sympathy System (SSS). Unlike traditional visual novels, Root Double does not have clear cut “choices,” but rather, the game uses SSS to allow the player to manipulate the story based purely upon emotion. Your emotions projected upon the characters, particularly your trust in them, shape the progression of the story. Only with the effective use of this system you can piece the truth and discover a way out of the facility.