Transistor

Red, a popular singer in the city of Cloudbank, kneels by the body of a man who has been killed with a glowing greatsword—the Transistor. The attack took away her voice, sealing it inside the Transistor. The sword also absorbed the man's consciousness, and through it he is able to speak to Red, acting as her guide and the game's narrator. As Red escapes, she is attacked by an army of intelligent robots known as the Process. She also discovers several Cloudbank citizens who have been "integrated" by the Process and absorbs their trace data into the Transistor, expanding the weapon's functionality.
Red makes her way to Cloudbank's Goldwalk district, where she learns that the Process is being controlled by the Camerata, a sinister group of high-ranking officials. The Camerata have been integrating individuals of influence through the Transistor; they were the ones who attacked Red, though the murder attempt was thwarted when the man stepped in front of the blow. At her former performance stage, Red confronts and defeats Sybil Reisz, a Camerata member in a corrupted Process-like form. She uses Sybil's knowledge of the Camerata to locate their leader—one of the administrators of Cloudbank, Grant Kendrell.
As Red enters the Highrise district, the Process becomes more aggressive, attacking the entire city indiscriminately. Asher Kendrell, another member of the Camerata, publicly reveals the Camerata's involvement and apologizes for their actions. It becomes apparent that the Camerata have lost control of the Process. After battling numerous Process enemies, including a massive creature referred to as the "Spine", Red reaches the hideout of the Camerata in Bracket Towers, only to find that Grant and Asher have committed suicide.
Resolving to track down the final member of the Camerata, Royce Bracket, and then escape the city, Red and her companion travel through Goldwalk, which has been "Processed" into a blocky, white facsimile of its original form. Royce approaches Red through a robotic proxy and offers to work together to stop the Process. He reveals that the Transistor, along with its docking point, the Cradle, are part of the apparatus used by the city's administrators to manipulate the landscape and environment of Cloudbank in order to satisfy the whims of the people. After fighting through the completely Processed district of Fairview, Red meets Royce and places the Transistor into the Cradle. This brings an end to the Process attack but also absorbs Red and Royce into the Transistor's virtual realm.
Royce informs Red that only one of them can return to Cloudbank and the two clash. After defeating Royce, Red is transported back into the city, where she begins rebuilding its Processed areas. Upon un-Processing the man's body and learning he cannot be restored from inside the Transistor, she sits down beside him and—despite his protests and pleadings otherwise—impales herself with the Transistor. In the closing credits sequence, it is shown that the man is reunited with Red within the virtual world of the Transistor. In a heartfelt embrace, she reveals that her voice has been restored.