 The promotion relied on community involvement, part of which required participants to use the SCVNGR applications available for the Android, iPad, iPhone, and iPod Touch platforms to complete treks around the five cities where the game was available.The final trek led to a kill room, where the Infinity Killer had recently claimed a victim.A link was found in the room to a (fake) company called Sleep Superbly, which began an extensive Showtime-maintained alternate reality game that continued until "Dexter"s season-five premiere.