OPUS vs Mutazione
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
OPUS
Embark on an intergalactic visual novel adventure exploring a lawless solar system. Uncover the secrets of treasure-filled asteroids, forge relationships, and experience a deeply emotional story of love and loss.
- Visual novel-style adventure
- Intergalactic journey
- Richly layered story
- Endearing characters
- Random encounter decisions
- Explore star map and asteroids
- Light musical puzzles
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“Imagine 80 Days by way of Dune and a Makoto Shinkai film.” - Rock Paper Shotgun “The emotional and heartwrenching narrative of Echo of Starsong is its true strength.” - CNN Underscored “Incredibly interesting and evocative world filled with lore… The characters you meet and the way you’re exploring this world are just fantastic.” - VICE Waypoint Radio "OPUS: Echo of Starsong holds a very rare accolade of being one of the very few games that have brought me to tears by the end." - Movies Games and Tech —— Raving reviews from media across the board! 【ABOUT THIS GAME】 This is the definitive edition of the visual novel-style adventure game OPUS: Echo of Starsong, now with all-new voice acting. Dive in and enjoy an intergalactic journey that transcends time through love. Taking place in a lawless solar system at the height of a gold rush in space, players play as the exiled noble Jun, who is accompanied by Eda, a witch orphaned by war. Together, they embark on a journey of self-discovery, as they search for treasure-filled asteroids of legend and lore. However, what appears to be a blessed encounter will turn into a lifelong burden... Will Jun, now a withered old man, be able to see his lover one last time? 【A RICHLY LAYERED STORY】 Experience an 10-12 hour main storyline with a conclusion that’s sure to leave you in tears, and an additional 2-5 hours of side quests for those who eat lore for breakfast. How deep you dig is up to you. The details this world offers are there for you to discover at your own pace. 【AN ENDEARING CAST OF CHARACTERS】 Form relationships, experience love and loss, and face crises together. Each character has their own reason to embark on this journey. Discover not just what happened in their past, but what makes them who they are. 【PLAY IT SAFE OR RISK IT ALL】 Assess dozens of random encounters, and decide whether to roll your die. Should you really try to earn some much-needed cash with a bounty on your head? Or how about that stranded ship? It could be pirates in disguise! The fate of you and your crew lies in your hands. 【COUNTLESS BREATHTAKING ASTEROIDS】 Explore a giant star map full of asteroids, underground space stations, and sprawling cities as you trek across the stars. Discover a universe where humanity ekes out an existence among forts of floating rocks. 【LIGHT MUSICAL PUZZLES】 Find the fabled asteroids by listening for the right sound on the star map. Then explore the asteroids on foot, and match sound waves to the patterns of ancient gates to advance and unravel their secrets. Puzzles are kept simple to provide a relaxed, and accessible experience! — Connect with us: Twitter: https://twitter.com/sigonogames Discord: https://discord.com/invite/haUahrrab8 — Compatible with iPhone X or later, iPad (Gen 8 or later), iPad mini (Gen 5 or later), 11” iPad Pro (Gen 1 or later), 12.9” iPad Pro (Gen 3 or later), iPad Air (Gen 3 or later)
Mutazione
Embark on a narrative-driven adventure in a unique community where personal drama and supernatural events intertwine. Explore a hand-illustrated world, cultivate musical gardens, and uncover secrets as you help a young protagonist care for her grandfather and save the town from a mysterious darkness.
- Explore a hand-illustrated world
- Engage with an ensemble cast of mutant characters
- Experience unpredictable dramatic twists
- Customize gardens for musical soundscapes
- Share seeds with friends
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A mutant soap opera where small-town gossip meets the supernatural... MUTAZIONE is an adventure game where the juicy personal drama is just as important as the high-stakes adventure part of the story. Explore the community as 15-year-old Kai as she travels to the strange and secretive community of Mutazione to care for her ailing grandfather, Nonno. Make new friends; plant musical gardens; attend BBQs, band nights and boat trips; and embark on a final spiritual journey to save everyone from the strange darkness at the heart of it all. Over 100 years ago, the meteor “Moon Dragon” struck a tropical holiday resort. Most of the inhabitants perished, while those who survived began to show strange mutations... The rescue missions quickly retreated, and those who remained in the mutating environment founded the small and isolated community of Mutazione. Fast-forward to modern day, where you play as 15-year-old Kai as she travels to Mutazione to help nurse her dying grandfather back to health. But things aren’t as simple as they seem... Nonno has other plans for Kai; secrets and betrayals simmer under the friendly community’s surface; and there’s a creepy bird-like figure who keeps on appearing in Kai’s dreams. They can survive an apocalyptic meteor strike, but can they survive their small-town drama? Features: • A lush, hand-illustrated world to explore • Ensemble cast of loveable mutant characters • A story with unpredictable dramatic twists and turns • Gardens to customize for unique relaxing musical soundscapes • Seed sharing - send and receive rare and unusual seeds with your friends
Screenshots
Verdict
The clearest difference is rating: OPUS at 4.9 against Mutazione's 4.4. OPUS also leads on review sentiment (92% vs 57%) and update cadence (every 3 weeks vs every 6 weeks). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
OPUS costs $8.99 and Mutazione $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
OPUS holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 55 and 19 respectively. Written reviews point the same way: 92% of OPUS's written reviews are positive against 57% of Mutazione's.
OPUS ships an update every 3 weeks, Mutazione every 6 weeks. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.
| Parameter | OPUS | Mutazione |
|---|---|---|
| Price | $8.99 — better | $9.99 |
| Rating | 4.9 (55 ratings) — better | 4.4 (19 ratings) |
| Positive reviews | 91.7% of reviews — better | 57.1% of reviews |
| Number of ratings | 55 — better | 19 |
| Update frequency | Every 3 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod, Apple TV — better | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 2.1 GB | 1.3 GB |
| Age rating | 12+ | 12+ |
| Developer | SIGONO INC. | Akupara Games, LLC |
Customer experience
OPUS
Mutazione
In-app purchases
OPUS
No in-app purchases
Mutazione
No in-app purchases









