The Signal Remastered is a single player episode included with Alan Wake Remastered (2021). "The Signal" originally was an additional Alan Wake episode released via DLC in October of 2010. The episode can be started whenever the player chooses to do so, but it is set immediately after the events of the base game. The second and final Alan Wake DLC episode, titled "The Writer," was also remastered and included with Alan Wake Remastered.
Continuing on where the main game finished, Alan finds himself outside the diner in a night time Bright Falls which quickly changes to daytime. Entering the diner, a surreal déjà-vu dream of the events play out similar to when Alan first arrived, with everything eerily familiar but out of place. Alan is unable to remember where he was prior to this moment, but knows he must go to the back of the diner which he forcibly enters. Zane talks to Alan and warns him that he should go no further and that Alan must focus. Zane plays a video of Alan struggling with reality and even telling of events playing out at the moment, Alan realizes where he is: The Dark Place.