This is Russian Roulette, a deadly game of chance with a dark allure, which through countless portrayals in popular culture has become known as the pastime of the unhinged, of the desperate, of those with nothing left to live for.

Play continues until a player either forfeits or blows their brains out. Depending on the rules, the cylinder is either re-spun after each play or left as-is. The players then take turns placing the revolver against their heads and pulling the trigger. The revolver is opened, a single cartridge loaded, and the cylinder spun. All that is needed is a revolver, some cartridges, and one or more players.