OPUS: Echo of Starsong – Full Bloom Edition is a Adventure game from SIGONO INC. with a 94% positive Steam review signal. Indie Lantern indexes it for players browsing by weird, single-player.

Game snapshot
- Developer
- SIGONO INC.
- Release year
- 2021
- Playtime
- Varies by player
- Price
- $9.99
- Review signal
- 94% positive
Screenshots






System requirements
PC
- Minimum
- OS: Windows 10 Processor: Intel Core i5-2300 | AMD FX-4350 Memory: 4 GB RAM Graphics: Nvidia GeForce GTX 570, 1 GB | AMD Radeon HD 7850, 2 GB DirectX: Version 11 Storage: 4 GB available space Sound Card: 100% DirectX 11 compatible sound card
- Recommended
- OS: Windows 10 Processor: intel i7-7700 / AMD Ryzen 5 3500 Memory: 8 GB RAM Graphics: AMD Radeon RX 560 4GB / Nvidia GTX 950 2GB DirectX: Version 11 Storage: 4 GB available space Sound Card: 100% DirectX 11 compatible sound card
macOS
- Minimum
- OS: macOS 10.13.6+ Processor: Dual Core 2.4GHz+ Memory: 4 GB RAM Graphics: Intel HD 5000 Storage: 4 GB available space
- Recommended
- OS: macOS 10.13.6+ Processor: Intel Core i7 2.6GHz 6 Core Memory: 8 GB RAM Graphics: Radeon Pro 560X 4GB GDDR5 Storage: 4 GB available space
From Steam reviews
Review notes
OPUS: Echo of Starsong – Full Bloom Edition is worth a closer look if you want emotional story, exploration, strong atmosphere, and management.
Best for players who want emotional story, strong atmosphere, nautical, and exploration.
Check more carefully if you dislike unclear onboarding.
emotional-story
ToneThe story is framed as affecting rather than just plot-heavy.
exploration
Play styleThe draw is moving through spaces, discovering details, and learning the world.
strong-atmosphere
ToneThe mood, place, and presentation carry a lot of the experience.
management
Play styleThe game asks you to run, improve, or balance a system over time.
narrative-adventure
Play styleThe experience is more story-and-place driven than systems-heavy.
nautical
SettingWater, boats, fishing, or sea travel are important to the feel.
melancholic
ToneThe emotional register is quieter, sadder, or bittersweet.
confusing-onboarding
FrictionThe first hours can be unclear without patience or outside help.
Steam review snapshots
Hearing the devs explain how this world came to be, their inspirations, the themes they wanted to explore, and the personal stories…If you’re looking for something story-driven, heartfelt, and beautifully crafted, this game is honestly a must play.Went in expecting a relaxing sci-fi adventure, but what I got was a genuinely emotional story that stayed with me long after…Want to play a short game that will not take you more than 7 to 10 hours?Why it fits
Good for players who want a story-driven, single-player adventure with strong atmosphere, exploration, and a nautical feel. Emotional story and strong atmosphere Exploration-focused narrative adventure Includes management elements Nautical tone and melancholy mood
Who might skip it
You want clear onboarding You prefer systems-heavy play You do not want a story-first adventure