They can alternatively play the original version through a PS1 emulator.
Dead Rising
Call of Duty: World at War
Resident Evil 7: Biohazard
Gears of War
Left 4 Dead
Doom Eternal
Soldier of Fortune: Payback
Brutal Doom
Mortal Kombat X
League of Legends
If you've spend years raising your kid to be a good person, all that will go to waste once they start playing League of Legends.
Silent Hill
Silent Hill 3
Outlast
Manhunt 2
Conditions to let your kid play this game: 1.) Your kid must be turning 18 by the time they play this. 2.) They must have completed the aforementioned games. 3.) Make sure to raise your kid as a kind and loving person. 4.) Your kid must know to always appreciate the value of human life no matter what.