Song of the Abyss

Song of the Abyss is a short form yuri romance told from the perspective of Cnidra, a deep sea jellyfish mermaid living in the back of a research-based aquarium.   No matter how frequently resident scientists or caretakers ask, Cnidra reassures them of her decision to stay in the facility, satisfied with their arrangement despite living alone.

It's only when a new intern unexpectedly hears the otherwise quiet Cnidra's Song that her silent, unchanging daily life is shaken.  She begins to think about the great expanse outside of her tank and her role within it.

What results is a shared journey of development, as the visitor and Cnidra learn about each other's worlds - the good, the bad, and everything in between.

• A tightly told short story about 15,000 words long.
• 4 endings, with multiple beautiful CGs.
• Partially non-linear structure with a lore focus.
• Customizable names for both primary characters.
• UI and in-game font selection for accessibility.

Credit:

Art:
Sprites by aya.
CGs by Ame.

Original Backgrounds: Stock photos from Pexels
Edited by Stardust and Snowflakes

Music and Sound Effects:
Dark Fantasy Studio 
Ovani Sound

via Royalty Free Licenses

"Splash"
by Michel at cube

"Ice Cave" and "iced village (piano version)"
by TAD
Licensed under Creative Commons Attribution 4.0 International

"little lullaby"
by Alex_089
Licensed under Creative Commons Attribution 4.0 International

"Summers"
by symphony
Licensed under CC0 1.0 Universal

Testers:
Altima
Mitsu
Suki

Changelog:

1.0 - May 20th, 2025
Game released

1.05 - May 21st, 2025
Added an extra affection point to ease True Ending availability
Added a CG Gallery Function