In honour of Supernatural's 300th episode (which there's no sign of seeing here in the UK yet!) show creator Eric Kripke shared his original pitch for the show, from 2004, this week via Twitter.
He then followed this up with the original pitches, from 2005, for the first five episodes.
There's plenty of inspirational material both for gamers and writers here, as well as being simply a fascinating insight into one of the most enduring genre shows on television.
And don't forget, if you're looking for similar material last year Eric posted a list of his original story idea bullet points.