Comparison

OPUS vs Universe For Sale

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Visual novel-style adventure
  • Intergalactic journey
  • Richly layered story
  • Endearing characters
  • Random encounter decisions
  • Explore star map and asteroids
  • Light musical puzzles
Features
Read full description

“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)

About

Universe For Sale

Explore a hand-drawn adventure game set in a bizarre bazaar on Jupiter. Interact with unique characters and uncover the mystery behind a woman's ability to craft entire universes.

Highlights
  • Hand-drawn adventure gameplay
  • Explore a Jupiter shantytown
  • Interact with diverse characters
  • Uncover a central mystery
  • Craft universes to specifications
Read full description

For optimal stability, this game requires a device with at least 6 GB of RAM. In a bizarre bazaar, there's a worried woman crafting entire universes in the palm of her hand. Universe for Sale is a hand-drawn adventure game set in the dense clouds of Jupiter, where sapient orangutans work as dockhands and mysterious cultists strip the flesh from their bones in order to reach enlightenment. Explore all the nooks and crannies of a ramshackle colony on Jupiter. Rickety tea houses, strange oddity shops, and overworked mechanics garages abound in the picturesque and infamous shantytown that's cropped up around the abandoned mine. Every new face, whether human, simian, skeletal or robotic, has a unique story to tell as they do their best to survive the acid rain pouring down. The nameless master, intrigued by stories of Lila's ability to create universes, finds her on a rainy night to discuss the unique power that she has. For something so awe-inspiring, she explains it like she'd explain how to brew coffee. But it isn't just the master who wants to know more about Lila, who threatens to unravel the mystery at the heart of Universe for Sale. So, choose a cup, find some ingredients and Lila will craft a universe down to your particular specifications. Only question is: You buying?

Screenshots

OPUS4 screens
Universe For Sale4 screens

Verdict

The call

The clearest difference is review sentiment: OPUS at 92% against Universe For Sale's 45%. OPUS also leads on rating (4.9 vs 3.0) and ratings volume (55 vs 7). Universe For Sale's advantage is update cadence (every 10 days vs every 3 weeks) and price ($6.99 vs $8.99). On ads, in-app purchases, monetization model and device support 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

CostPrice · In-app purchases · Ads · Monetization

OPUS costs $8.99 and Universe For Sale $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

OPUS holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: OPUS has 55 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 92% of OPUS's written reviews are positive against 45% of Universe For Sale's.

UpkeepUpdate frequency

OPUS ships an update every 3 weeks, Universe For Sale every 10 days. The most recent releases landed on September 20, 2026 and September 23, 2026 respectively.

Scorecard6 real differences · 4 level
OPUS versus Universe For Sale: the parameters behind the verdict, then further details
ParameterOPUSUniverse For Sale
Price$8.99$6.99 — better
Rating4.9 (55 ratings) — better3.0 (7 ratings)
Positive reviews91.7% of reviews — better45.5% of reviews
Number of ratings55 — better7
Update frequencyEvery 3 weeksEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod, Apple TV — betteriPhone, iPad, iPod
Requires iOS11.0 — better15.6
Further details — not scored
Size2.1 GB327 MB
Age rating12+12+
DeveloperSIGONO INC.Akupara Games, LLC

Customer experience

OPUS

All ratings55 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews12 reviews
Positive91.7%
Neutral0.0%
Negative8.3%

Universe For Sale

All ratings7 ratings
Positive42.9%
Neutral0.0%
Negative57.1%
Written reviews11 reviews
Positive45.5%
Neutral0.0%
Negative54.5%

In-app purchases

None

OPUS

No in-app purchases

None

Universe For Sale

No in-app purchases

Questions

Is OPUS free?
OPUS costs $8.99, with no in-app purchases.
Is Universe For Sale free?
Universe For Sale costs $6.99, with no in-app purchases.
Which has better reviews, OPUS or Universe For Sale?
OPUS is rated higher. OPUS averages 4.9 out of 5 from 55 ratings, while Universe For Sale averages 3.0 from 7 ratings.
Do OPUS or Universe For Sale have ads?
Neither OPUS nor Universe For Sale shows ads.
Which is updated more often, OPUS or Universe For Sale?
OPUS ships an update every 3 weeks, and Universe For Sale every 10 days. Most recently, OPUS was updated on September 20, 2026 and Universe For Sale on September 23, 2026.

Other comparisons