Its creator says the controversial game makes a statement about the importance of gun control.
The Slaying Of Sandy Hook Elementary was created by Ryan Jake Lambourn, a Texas-born artist, who currently lives in Australia.
In the game you play as Adam Lanza. Your first mission is to murder your mother.
It asks you to shoot her a few times just to be sure.
You then grab an assault rifle and your mother's car keys and head to Sandy Hook.
