https://motherboard.vice.com/en_us/article/evkp3a/active-shooter-removed-from-steam-by-valve

On June 6, developer Revived Games and publisher ACID were going to unleash the video game Active Shooter on the world. The game would let player experience a mass shooting from the point of the shooter or the SWAT team trying to take them down. Some people were understandably upset.

But the game won’t see the light of day, at least not on Steam. Valve—the company behind the digital distribution storefront—has removed it.