This is a guide to the soundtrack of The House in Fata Morgana, containing all non-consecutive appearances of background music in the entire visual novel. Track names are as they appear in the in-game music player, with some possible differences in punctuation etc. Subchapters are used for convenience - if you need an overview of all chapters and subchapters, check out Techim's reading log. If you have not yet completed the game, be aware that subchapter names may contain spoilers, so proceed with caution.

Optional appearances (including all bad and dead ends) are marked with italics. Any notes from me are in {curly brackets}. I would prefer to use square brackets but Steam uses them for markup.

Some tracks are marked as "in-game versions" - in those cases, there's some sort of notable difference between the track as heard in the game and the track as released in the OST. The "Concert Hall" music player extra (unlocked after completing the game) uses the in-game versions.

Main menu (before finishing): The Maid (Piano)
Main menu (after finishing): Giselle
Chapter selection: Desolation {in-game version}
Art gallery: The Maid (Piano)

Prologue: Desolation {in-game version}

Backstage:

• Desolation {in-game version}
  
• Cicio
  
• {assuming the default order of each choice}:
  
  • Patalouda
    
  • Huaina
    
  • Ciao Carina
    
  • Cetoniinae
    
  • Sanctus
    
  • Skia Oura
    
  • Dammi una Sigaretta
    
  • Face Like a Mask {in-game version}
    
  • The March of Time
    
  • Fábula Escrita
• Giselle

I hope this guide was of use to you. If you have any feedback or corrections, please do leave them in the comments. (It's a long visual novel so I probably missed something...)

One note about the beginning of chapter 7 - the "unreleased track" does not appear in the OST in any form, so it might be SFX that's being played as music. If so, you might be able to find it in one of the sound effect libraries that Novectacle used.

The OST on Steam:
https://gtm.you1.cn/storesteam/app/458790/

Techim's reading log:
https://gtm.you1.cn/sharedfiles/filedetails/?id=685653577