"We knew we would have to iterate and refine, but there was always a rough road map there.
"Near the end of Alan Wake, we were sitting down and talking about the sequel and where we should be taking it, on a detailed level. More or less straight from getting Alan Wake shipped, we were working on a sequel and planning on a sequel."
Lake also indicated that Remedy had more than one sequel in mind.
"Definitely what we have mapped out is a longer thing than the first game and a sequel; there is more to it," Lake said.
"In many ways, we see the universe as a bigger thing. Alan Wake is a very central character, but we have other characters around him like [friend and agent Barry Wheeler] and his wife Alice and Sheriff Sarah Breaker and other characters there."
Lake described the prototype for Alan Wake 2 as a "mood piece" that includes "the high-level thematic elements of what's there".
When it became clear that Alan Wake 2 was unlikely to happen, Lake said Remedy used some of the prototyped elements in 2012's Alan Wake: American Nightmare, a stand-alone story set in the Alan Wake universe.
Lake added that the studio was comfortable releasing the prototype to Polygon because the elements within are so high-concept.
"There are no spoilers in it. That being said, I do hope we get an opportunity to work on Alan Wake 2. I want to do more Wake at some point."
Remedy is now working on Quantum Break, an episodic game that is in some ways a spiritual successor to Alan Wake.
- Gameplanet