Part of Siliconera editor Spencer's journey to GDC was done on a Virgin America jet and like all flights there is a period of boredom while waiting for the "please turn off electronic devices" light to dim. Usually, he read the plane's magazine or start a crossword puzzle. Virgin America had an entertainment system to keep him busy during the downtime. Flipping through the menus he found classic Doom. Yes, Doom from iD Software.