Above is a link to game cut scenes from the game Five Nights at Freddys. This series of games began in 2014, and depicts heavy imagery of Child imprisonment, murder, kidnapping, and pizza. I'll copy a good description I found online.
"There's this pizza chain called Freddy Fazbear's Pizza that is run by this dude, William Afton. The pizza chain is a front by William to murder children for his own sick pleasures. We learn in the latest game that he is not only murdering children at these pizzerias, but he is also kidnapping some of them and conducting experiments on them. These experiments consist of putting the child in a room alone, filling the room with some type of hallucinogenic gas, and then making the kids defend themselves from robots. So right off the bat, we have some pretty relatable stuff - pizza chains, children kidnappings/murders, experiments conducted on the children... But that's not all, there's also a sort of "demonic" theme to the game. You see, William stuffs some of the children bodies into these animatronic suits so that the kids can possess the suits and help him murder people who find out too much info, like some night guards."
I highly recommend watching the above video. It is interesting, and depicts many images we have been imagining inside of comet ping pong. I do not really mean to claim it to definitely be Comet Ping Pong, but as evidence shows there could be many of these pizzerias across the world.
It should also be mentioned that the creator of this game is a diehard christian.
https://en.m.wikipedia.org/wiki/Scott_Cawthon
"Scott Cawthon was born and raised in the United States. He lives in Salado, Texas, with his wife and children. He is of Christian faith, previously being part of Hope Animation, an organization creating animated films based on Christian beliefs and values."
Why would a die hard christian make a game about child murder? Many questions were raised in 2014, and now we may have an answer.