Solstice

Not to be confused with the music track "Solstice" On March 27, 2017, a "bonus chapter" was released that affected NG+ runs. In this update, the Solstice chapter and ending is added and previously inaccessible areas (past the mine in the Barrens, the graveyard in the Glen, and the countdown door in Refuge) are made accessible through the use of the journal, with the exception of the countdown door as it uses the password "SOLSTICE" instead of using the journal.

Solstice Chapter
To start the Solstice chapter, the Player should be doing an NG+ run and currently in the Barrens (If the player is in an NG+ run and past the Barrens, they could prematurely reset their run by having Niko sleep in the bed inside the countdown door's room). If the Player lets Niko enter the mines, go to the once-inaccessible area there, and converses with Proto. The Solstice chapter begins and the run is locked onto it (the run can no longer go its normal route).

During the run, significant characters like Silver, Calamus, Alula, and the Lamplighter die due to the result of the squares. Once accessible areas become inaccessible also because of the squares, restricting the Player to play the path Solstice was intended to. Through the chapter, Niko, Proto, Rue, and Cedric put forth the plan that was intended to gain a happy ending. With the chapter concluding on Niko conversing with the World Machine, the sun returning to its rightful place, and Niko returning home.

Trivia

 * According to Night, Solstice was originally going to be a side-game tied to OneShot. With its focus on the Author and his life prior to the events of OneShot.
 * The jingle that plays when collecting items is slowed down for Solstice-exclusive items.