
Screenshots

Watch trailer on Steam ↗水没廃墟のピアノドロイド
Forest · Published by Forest · Official site ↗
5 user reviews — 100% positive (5 reviews)
Last updated 28 Sept 2026
Half a century has passed since wars broke out over land due to rising sea levels. Two shadows walk through the submerged ruins, moving from house to house in order to survive. Along the way, they arrive at a concert facility. There was a woman with long chestnut hair playing the piano.
£8.50
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
Adventure, Indie, Simulation, Casual · 2024 · More £5 - £15 games
Explore the eerie underwater world of "水没廃墟のピアノドロイド," where you guide two shadows through post-apocalyptic ruins. Discover the haunting beauty of a pianist's performance in a concert facility as you piece together this adventure from Forest, set to release in 2024.
About this game
■Work content
"What I met in the submerged ruins was a machine with a rich tone..."■Overview
This is an adventure game with multiple endings, where the story branches depending on your choices.The story progresses from the perspective of the main character, who travels through beautiful underwater ruins painted in a watercolor style.
In addition, this work is structured around the pillar of "worldview first".
■Sales points
《Submerged Ruins × Piano × Android》Based on the world view first principle, we provide a profound "post-apocalyptic" world that can only be found in adventure games.
《Challenging visual art》
A fusion of watercolor art background and contemporary character art. Delivered with challenging visuals.
《Unprecedented “piano” only BGM》
The BGM of this work consists entirely of piano. Please enjoy the beautiful world of piano with its various faces.
■Story
Half a century has passed since wars broke out over land due to rising sea levels.Two shadows walk through the submerged ruins, moving from house to house in order to survive.
In the middle of it, they arrive at the concert facility and open the door to the main hall.
There was a woman with long chestnut hair, her fingers dancing on her keyboard.
A trio of submerged ruins with rich tones and stories.
Here 《Start》
■Character

《Innocent Realist》
●Sachi
“Nana-chan, it’s Nana-chan!”
Along with the main character
A girl traveling through submerged ruins.
Her double teeth are very charming.
Although energetic, the harsh reality
she accepts.
What she likes is cute things.
What she hates are dark places and ghosts.
The barcode on her shoulder and her bracelet are traumatizing.

《Mechanical Sleeping Beauty》
●Nana
"My name is Nana, the piano droid."
I woke up in a concert hall,
High performance android.
She is commonly known as "Piano Droid".
Because she was in a sleep state for a long time,
She is ignorant of the harsh "reality" of being submerged in water.
Her playing ability is more than human,
She also had a past where she was envied.
Sometimes she feels like the universe.
■Staff
・General director/scenario writer/scriptDuhe
・Music (piano music)
Piano BGM
・Theme song “Android of the Submerged Ruins”
Locarts P
・Background art
At once
・Illustration/character design
Kagetsu
·Sound effect
Demon King Soul
Sound effect lab
System Requirements
Will my PC run this? →Minimum
- OS: Windows10/11
- Processor: Core 2 Duo以上 / Core i5以上
- Memory: 2 GB RAM
Supported Languages
Latest news
AnnouncementsOfficial
[1st anniversary of the price mistake] Price revision.
The #Steam version of “Piano Droid in Submerged Ruins” will celebrate its 1st anniversary on... April 24th will be its 1st birthday👶Read full article on Community Announcements (forestgame1234567)






