File:Quake1.gif File:Globe.png File:DarkHourAddon.jpg Dark Hour is a commercial add-on for Quake developed and published by Microforum International. This add-on was released on November 26, 1996. Besides adding custom levels, this add-on has several text files designed to teach players how to get more out of their game. This also includes a list of Console Commands and Quake Editors. The Autorun application also has some features, including a story being told through a "Briefing Room" and various tips for playing Quake. Numerous custom sound effects also play during the installation, most prominently is the sound of a pistol being fired. Various splash screens also exist and are viewable when navigating the Autorun menus.