Comparison

DarkSlayer AFK RPG vs Celestial Machina

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

Head to head
About

DarkSlayer AFK RPG

Embark on an epic adventure to save a world overrun by zombies. Master three distinct combat styles and enjoy effortless character progression through idle gameplay. Collect stylish costumes and powerful gear to enhance your hero's abilities, even while offline.

Highlights
  • Switch between swordsmanship, marksmanship, and spellcasting
  • Infinite idle action with simple controls
  • Collect costumes and gear sets
  • Offline growth and resource acquisition
  • Stylish monster-slaying action
Features
Read full description

The world is riddled with zombies! That means it needs a hero to save it! You have the power to be the hero and save the world! Game Features - Stylish Action with Three Weapon Types : Enjoy cool monster-slaying action while switching freely between swordsmanship, marksmanship, and spellcasting! - Easy-for-All Infinite Idle Action : No complicated controls! Have fun as you easily grow your own character! - Eye-catching Costumes and Gear Sets : Look even fancier and grow more powerful with costumes and set gear! - Offline Growth : Acquire resources and items even when the game is turned off! SUPPORT Customer Service Email: cs_help@onbuff.com

About

Celestial Machina

Engage in 3D real-time tactical combat as awakened girls piloting humanoid battleships against alien invaders. Form strategic formations with diverse ship units and customize characters with unique outfits.

Highlights
  • 3D real-time tactical combat
  • Form diverse battleship formations
  • Customize characters with costumes
  • Engaging storyline
  • Cartoon-like 3D character rendering
  • Planned field exploration and interaction
Read full description

The harsh battle of the girls who awakened as Exsia against the Nephilim who appeared from another world begins... Celestial Machina: Exia in the Twilight" is a powerful 3D real-time tactics game! Formations are formed by combining various units. ◆Story  Suddenly, a bottomless pit called "Absos" appeared in the far north. The Nephilim appeared from there, and the human race was in unprecedented danger. Humanity fought back with aerial battleships, but they were gradually being driven back. However, thanks to the unknown power of the Einhoff Soul (Infinite Light), they succeeded in developing and operating a "humanoid battleship," a fusion of an awakened girl and a flying battleship. The "Armageddon", a campaign against mankind by these "Excia" and their allies, has begun. ◆Game System  Formations are formed by combining various battleship units such as flagship, cruiser, destroyer, attack ship, missile ship, support ship, and heavy cruiser. Real-time tactical combat with ring-gauge commands! All battles are presented in powerful and beautiful 3D graphics! Enjoy the powerful visuals of beams, missiles, machine guns, and blasters flying about. ◆Attractive Characters  All characters are rendered in cartoon-like 3D, and can be customized with costumes, accessories and more! Additional features to be added in future updates  Field exploration and interaction   We are planning to add a system that allows players to freely walk around the field with their favorite characters and enjoy interacting with various characters.  Character sensitivity   We are planning to add a system that allows players to use more powerful skills by improving the likability of each other's characters through interactions and battle combinations.

Screenshots

DarkSlayer AFK RPG4 screens
Celestial Machina4 screens

Verdict

The call

The clearest difference is review sentiment: DarkSlayer AFK RPG at 82% against Celestial Machina's 0%. DarkSlayer AFK RPG also leads on ratings volume (34 vs 2). Celestial Machina's advantage is in-app purchases (none vs 10) and rating (5.0 vs 4.7). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DarkSlayer AFK RPG sells 10 one-off in-app purchases. Celestial Machina asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Celestial Machina holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: DarkSlayer AFK RPG has 34 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 82% of DarkSlayer AFK RPG's written reviews are positive against 0% of Celestial Machina's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

DarkSlayer AFK RPG ships an update fortnightly, Celestial Machina every 2 weeks. The most recent releases landed on November 14, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
DarkSlayer AFK RPG versus Celestial Machina: the parameters behind the verdict, then further details
ParameterDarkSlayer AFK RPGCelestial Machina
PriceFreeFree
Rating4.7 (34 ratings)5.0 (2 ratings) — better
Positive reviews81.8% of reviews — better0.0% of reviews
Number of ratings34 — better2
Update frequencyFortnightlyEvery 2 weeks — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size788 MB284 MB
Age rating17+17+
DeveloperstudiobreezeOMEGA POINT

Customer experience

DarkSlayer AFK RPG

All ratings33 ratings
Positive93.9%
Neutral0.0%
Negative6.1%
Written reviews22 reviews
Positive81.8%
Neutral4.5%
Negative13.6%

Celestial Machina

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive0.0%
Neutral57.1%
Negative42.9%

In-app purchases

10 purchases

DarkSlayer AFK RPG

One-time10
  • Day1$0.49
  • Daily OneTime Purchase Package$1.19
  • Promotion&Reforge Stone Ticket$2.89
Show 7 more
  • Daily Tower of Rings Pack$3.99
  • Daily Tower of Necklaces Pack$3.99
  • Day2$3.99
  • Ad Removal Pack$5.49
  • 1100 Gacha Package$5.49
  • 3 Dungeon Tickets Pack$10.99
  • Breakthrough King 1$27.99
None

Celestial Machina

No in-app purchases

Questions

Is DarkSlayer AFK RPG free?
DarkSlayer AFK RPG is free to download, with in-app purchases available.
Is Celestial Machina free?
Celestial Machina is free to download, with no in-app purchases.
Which has better reviews, DarkSlayer AFK RPG or Celestial Machina?
Celestial Machina is rated higher. DarkSlayer AFK RPG averages 4.7 out of 5 from 34 ratings, while Celestial Machina averages 5.0 from 2 ratings.
Do DarkSlayer AFK RPG or Celestial Machina have ads?
Both DarkSlayer AFK RPG and Celestial Machina show ads.
Which is updated more often, DarkSlayer AFK RPG or Celestial Machina?
DarkSlayer AFK RPG ships an update fortnightly, and Celestial Machina every 2 weeks. Most recently, DarkSlayer AFK RPG was updated on November 14, 2026 and Celestial Machina on November 3, 2026.

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