https://www.gamespot.com/articles/school-shooting-game-removed-from-steam-valve-call/1100-6459283/

Valve has pulled a game from Steam that allowed you to play as a school shooter targeting students in some situations. In a statement to Motherboard, Valve confirmed the game--Active Shooter--was yanked and further commented on the person behind it who has a history of being problematic and controversial on the platform.

"We have removed the developer Revived Games and publisher ACID from Steam," Valve said. "This developer and publisher is, in fact, a person calling himself Ata Berdiyev, who had previously been removed last fall when he was operating as '[bc]Interactive' and 'Elusive Team.'"