I am looking for a song, a slow song with female singer and minimal instruments. The lyrics I remember are "It's the end of the world..." I believe the song may be from a videogame soundtrack. The vocals had similar vibes to "Still Alive" from Portal although the voice wasn't as computer-y.

The song was used by the Tsuki Project (Systemspace.link) where it autoplayed on one of the pages of their website circa 2017.