File: Guntastic.zip | ...

The weight in Elias's hand grew warmer. The game camera panned to the digital front door. Something was tapping on the other side.

He jumped, nearly falling out of his chair. He wasn’t holding anything, yet his hand was heavy. His fingers were curled around an invisible shape. When he pulled the trigger in the game, a deafening crack echoed through his physical room, and a very real hole appeared in his bedroom wall. File: Guntastic.zip ...

From the floor above him, Elias heard the heavy, rhythmic thud of footsteps. They sounded exactly like the footsteps of the man in 4B—the one who played loud music until dawn. But these footsteps were different. They were slow, deliberate, and heading toward the stairs. The weight in Elias's hand grew warmer

Elias looked away from the screen toward his real kitchen island. It was empty, save for a bowl of half-eaten cereal. He jumped, nearly falling out of his chair

When he clicked it, his monitor didn’t flicker or go black. Instead, it emitted a low-frequency hum that made the water in the glass on his desk ripple. The game didn’t have a main menu. It just dropped him into a hyper-realistic, grey-scale rendering of his own apartment.

"Cute," Elias muttered, his heart rate picking up. "Someone mapped the building."