When it released in 2010, Remedy's episodic thriller Alan Wake found a modest but ardent following - and it received overwhelmingly positive reviews.
But it went up against Rockstar's Red Dead Redemption and only sold 4.5 million copies - not enough for publisher Microsoft to consider financing a sequel, which it turns out Remedy had already outlined and prototyped.
In an unusual turn of events, Remedy has shared that prototype with Polygon. Watch it below.
"For Alan Wake, from the get-go, we assumed there was going to be a sequel and we mapped things further out when it came to character, story, details and focus changes," Remedy boss Sam Lake told Polygon.