Jesse Faden arrives at the Oldest House following a telepathic message from Polaris, seeking the whereabouts of her kidnapped brother Dylan. Inside the building, Jesse discovers the lifeless body of Zachariah Trench, and is instructed by Polaris to pick up his fallen Service Weapon. Jesse is translocated to the Astral Plane, where the Board appoints her as the new director of the FBC in Trench's stead. Exiting Trench's office, Jesse is attacked by FBC agents possessed by an entity Jesse dubs "the Hiss". Jesse learns that the Oldest House is under emergency lockdown following the Hiss's spread, and that everyone in the building has been possessed by the Hiss except those wearing Hedron Resonance Amplifiers (HRAs), devices built by missing Bureau scientist Dr. Casper Darling. Jesse agrees to aid the surviving agents in reclaiming the building and containing the Hiss, in exchange for Dylan's whereabouts.
Control is built in the Metroidvania format, with a large world map that can be explored at a nonlinear pace, unlike Remedy's previous titles which were primarily linear. As the player completes the main story missions, they will encounter areas known as Control Points, which can be unlocked after clearing the area of enemies and then used both as save points and for fast travel throughout the building to previously unlocked Control Points. As the player completes missions, they unlock more of the building to explore, along with additional side quests, in addition to various rewards. These include skill points which can be used to improve psychokinetic powers that Jesse gains over the course of the game, such as projectile-launching debris at enemies or seizing control of enemies' minds temporarily to turn them into her allies. Mission rewards include resources that can be used to improve the function of the Service Weapon, a special gun that can take on multiple forms, ranging from a close-range shotgun-like blast to long-range sniper-like form, with each form outfitted with various perks. The player can equip perks to improve Jesse's base attributes. Various side-quests and optional time-limited mission alerts are available with additional rewards if completed.
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