Compare OPUS: Echo of Starsong - Full Bloom Edition prices across trusted key stores and find the best deal. Developed by SIGONO INC.. Published by SIGONO INC.. Released on 8/31/2021. Available on PC, Mac. Genres: Adventure, Indie. Metacritic score: 90/100.

Put on headphones before you launch this one. SIGONO's space-opera visual novel hits like a Makoto Shinkai film with an actual gameplay loop attached.

My first instinct when I loaded Echo of Starsong was to treat it like any other visual novel: sit back, click through dialogue, let the story wash over me. That instinct is partly right, but it undersells how much structural thinking SIGONO packed into this thing. The game opens with an elderly Jun entering a cave alone, replaying a decades-old promise to a woman named Eda, and the whole story unfolds as a flashback across the fictional Thousand Peaks planetary system. That framing device gives every quiet moment a weight that is hard to shake. Mechanically, the game layers three distinct modes on top of each other. You pilot the Red Chamber, Eda's ship, across an interstellar navigation map, managing fuel caches, armor plating, and signal modifiers as you choose where to fly next. Arriving at new locations triggers random encounter events with dice-roll outcomes, a light bit of FTL-adjacent tension without any of FTL's punishing rogue structure. When you close in on a lumen cave, a starsong puzzle kicks in: you rotate orbs of light around Eda's singing character, listening for changes in her voice to find the correct alignment. Solve it, and the game shifts into a 2.5D side-scrolling cave exploration where Jun, Eda, or Remi navigate environmental puzzles using collected starsong samples tuned against equalizer-style inscriptions carved into ancient contraptions. None of these systems are demanding in isolation, and that is completely intentional. Each layer is light enough that your attention stays fixed on the characters and the world's dense, beautifully constructed lore, including glossary entries for hundreds of items that read like dispatches from a civilization that existed long before you arrived. The criticism that surfaces most often is fair and worth flagging: the navigation sections can feel repetitive, and the story's emotional beats occasionally arrive before the character work has fully earned them. The localization also drew some complaints in early builds. For players who need kinetic, systems-forward gameplay to stay engaged, this will feel slow. The opening hour in particular is almost entirely scripted cutscenes with very little player input. But if you are someone who reads every item description and wants to understand why a fictional currency feels economically plausible, SIGONO built the universe for you. The Full Bloom Edition adds full Japanese and Chinese Mandarin voice acting to a cast that was previously silent, and it changes the texture of the experience considerably. Eda and Remi especially benefit, and the score, which the game literally asks you to play through headphones at launch, earns that request. The audio puzzles depend on it. So does the ambient mood of drifting through a post-war interstellar society that is equal parts melancholic and quietly hopeful. Themes of self-worth, loss, and what it means to belong to something carry through every interaction, and the found-family dynamic among Jun, Eda, Remi, and Kay is the kind that lingers after the credits roll. Kai, Scout Team

OPUS: Echo of Starsong - Full Bloom Edition

OPUS: Echo of Starsong - Full Bloom Edition

Aug 31, 2021SIGONO INC.
GamerScout Says

Put on headphones before you launch this one. SIGONO's space-opera visual novel hits like a Makoto Shinkai film with an actual gameplay loop attached.

PCMac
Steam Deck VerifiedProtonDB Platinum
Best Price Available
€0.00
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Historical low: €18.00

GamerScout Verdict

Essential for visual novel fans and narrative-first players willing to let a slow, headphone-worthy space opera settle into them.

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Price History

Historical low
€18.005 Jun 2026
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€16.56€17.52€18.48€19.445 Jun16 Jun28 Jun9 Jul20 Jul
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About OPUS: Echo of Starsong - Full Bloom Edition

My first instinct when I loaded Echo of Starsong was to treat it like any other visual novel: sit back, click through dialogue, let the story wash over me. That instinct is partly right, but it undersells how much structural thinking SIGONO packed into this thing. The game opens with an elderly Jun entering a cave alone, replaying a decades-old promise to a woman named Eda, and the whole story unfolds as a flashback across the fictional Thousand Peaks planetary system. That framing device gives every quiet moment a weight that is hard to shake. Mechanically, the game layers three distinct modes on top of each other. You pilot the Red Chamber, Eda's ship, across an interstellar navigation map, managing fuel caches, armor plating, and signal modifiers as you choose where to fly next. Arriving at new locations triggers random encounter events with dice-roll outcomes, a light bit of FTL-adjacent tension without any of FTL's punishing rogue structure. When you close in on a lumen cave, a starsong puzzle kicks in: you rotate orbs of light around Eda's singing character, listening for changes in her voice to find the correct alignment. Solve it, and the game shifts into a 2.5D side-scrolling cave exploration where Jun, Eda, or Remi navigate environmental puzzles using collected starsong samples tuned against equalizer-style inscriptions carved into ancient contraptions. None of these systems are demanding in isolation, and that is completely intentional. Each layer is light enough that your attention stays fixed on the characters and the world's dense, beautifully constructed lore, including glossary entries for hundreds of items that read like dispatches from a civilization that existed long before you arrived. The criticism that surfaces most often is fair and worth flagging: the navigation sections can feel repetitive, and the story's emotional beats occasionally arrive before the character work has fully earned them. The localization also drew some complaints in early builds. For players who need kinetic, systems-forward gameplay to stay engaged, this will feel slow. The opening hour in particular is almost entirely scripted cutscenes with very little player input. But if you are someone who reads every item description and wants to understand why a fictional currency feels economically plausible, SIGONO built the universe for you. The Full Bloom Edition adds full Japanese and Chinese Mandarin voice acting to a cast that was previously silent, and it changes the texture of the experience considerably. Eda and Remi especially benefit, and the score, which the game literally asks you to play through headphones at launch, earns that request. The audio puzzles depend on it. So does the ambient mood of drifting through a post-war interstellar society that is equal parts melancholic and quietly hopeful. Themes of self-worth, loss, and what it means to belong to something carry through every interaction, and the found-family dynamic among Jun, Eda, Remi, and Kay is the kind that lingers after the credits roll.

Kai
Kai · Scout Team

Indie & narrative

Tags

singleplayerachievementscontroller-supporttrading-cardstier:aaaFlashback NarrativeAudio PuzzlesFound FamilyShip Resource ManagementLore-Dense WorldbuildingJapanese Voice ActingDice-Roll Encounters2.5D Cave ExplorationPost-War Sci-Fi

System Requirements

Minimum

OS
Windows 10
Memory
4 GB RAM
DirectX
Version 11
Storage
4 GB available space
Graphics
Nvidia GeForce GTX 570, 1 GB | AMD Radeon HD 7850, 2 GB
Processor
Intel Core i5-2300 | AMD FX-4350
Sound Card
100% DirectX 11 compatible sound card

Recommended

OS
Windows 10
Memory
8 GB RAM
DirectX
Version 11
Storage
4 GB available space
Graphics
AMD Radeon RX 560 4GB / Nvidia GTX 950 2GB
Processor
intel i7-7700 / AMD Ryzen 5 3500
Sound Card
100% DirectX 11 compatible sound card

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Community Discussion

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Reviews & Ratings

Metacritic
90

Game Info

Developer
SIGONO INC.
Publisher
SIGONO INC.
Release Date
Aug 31, 2021

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How much does OPUS: Echo of Starsong - Full Bloom Edition cost?

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What platforms is OPUS: Echo of Starsong - Full Bloom Edition available on?

OPUS: Echo of Starsong - Full Bloom Edition is available on PC, Mac.

When was OPUS: Echo of Starsong - Full Bloom Edition released?

OPUS: Echo of Starsong - Full Bloom Edition was released on 31 August 2021.

Who developed OPUS: Echo of Starsong - Full Bloom Edition?

OPUS: Echo of Starsong - Full Bloom Edition was developed by SIGONO INC..

Is OPUS: Echo of Starsong - Full Bloom Edition worth buying?

OPUS: Echo of Starsong - Full Bloom Edition holds a Metacritic score of 90/100, making it one of the standout Adventure titles. See the full reviews, ratings and how-long-to-beat times on this page to decide.