Hatred came out in 2015, and was effectively banned in some regions. A true test on this topic will never happen in the public, Adults Only rated-games only get so far.

"Mike Splechta of GameZone questioned the game's timing and how it could become the "next scapegoat" in a climate that already held video games responsible for school shootings and other violence."

https://en.wikipedia.org/wiki/Hatred_(video_game)#Reception