Comparison

.Decluster Zero vs Celtreos

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

Head to head
About

.Decluster Zero

Experience a Japanese-style bullet-hell shooter with retro graphics and modern gameplay. Utilize a unique bullet-canceling system and homing lasers to overcome intense enemy barrages. Features include multiple levels, challenging boss battles, and adjustable difficulty.

Highlights
  • Japanese style bullet-hell shooter
  • Bullet-Canceling system
  • Homing laser mechanic
  • 5+ levels with boss battles
  • 4 difficulty levels
  • Optimized mobile controls
  • Replay video integration
Features
Read full description

'.Decluster Zero (dot decluster zero)' is a Japanese style bullet-hell shooter with abstract and pixelated neo-retro graphics. The game offers modern-classic bullet-hell gameplay and traditional Japanese beautiful bullet patterns. You'll get new bullet-hell experiences which are brought by Bullet-Canceling system. In the game, you'll encounter tons of bullets which are insane. It is impossible to keep dodging, but you can erase the bullets easily. A main mechanic is 'homing laser' with CANCELING enemy bullets around your ship. It requires gauge, but easy to fill. You should use the homing laser aggressively and it is the best way to defeat enemies. Moreover, there is a mechanic which slows down bullets around your ship in order to dodge them easily. Are you interested in this game? You can watch user's replay videos on Everyplay: https://everyplay.com/-decluster/videos You can also watch them in this app. Tap 'EVERYPLAY' button on the title screen. (The lite version also.) -- .Decluster Zero is a remix version of bullet-hell shooter '.Decluster: Into The Bullet Hell'. With many remixes and new features: remixed soundtracks, modified mechanics, redesigned levels, and more. #1 SOUND - Remixed all soundtracks + new soundtrack #2 MECHANICS - Expanded homing laser system - Touch and hold a second finger... - Bullets around the player are slowed down (Capture Mode) - New scoring system (Homing laser basics are the same as before: requires meter and cancels bullets.) #3 LEVEL DESIGN - Redesign for new mechanics plus new scenes - Modify/add bullet patterns and enemies #4 PLAYER SHIP - Full-power from beginning - Change basic weapon anytime - Three level stock homing laser gauge - Charge the meter by itself (Charge Mode) #5 GRAPHICS - Improve visibility - Improve graphics quality -- FEATURES: - Japanese style bullet-hell shooter - Terrific bullet hell experience - 5 various levels + 1 - Beautiful bullet patterns - Boss battles which take your breath away - 4 levels of difficulty that actually make a difference - Soundtracks to make you high - Optimized controls for mobile - Restart from any level you reached - Adjustable gameplay area - Various settings - Replay video through Everyplay - Game Center support - Leaderboard/Achievement - Leaderboard for each difficulty/level - Universal app for iPhone/iPad/Apple TV - MFi controller support Trailer: https://www.youtube.com/watch?v=QZI665o_pMs SoundCloud: https://soundcloud.com/dot_decluster Twitter: https://twitter.com/dot_decluster

About

Celtreos

Experience a classic space shooter with modern features. Engage in challenging levels with randomized elements, a vast arsenal of weapons, and customizable ships. Enjoy a rich soundtrack or play your own music.

Highlights
  • One or two-player modes
  • 30 unique songs with custom music support
  • Over 12 randomized stages
  • Extensive weapon and ship customization
  • In-game power-ups and power-downs
  • Adjustable game settings (lives, graphics, speed)
Features
Read full description

One-player game, OR two players if you have a game controller. “Celtreos” is like the space shooters of decades past: tiny ship, big weapons, waves of foes, power-ups and obstacles. Music, Sound and Voice • 30 different songs (45 minutes of music!) • You can even play your own music and auto-next-song for key game events Stages • Over 12 stages: a city, space station, ocean and more • Horizontal scrolling but more than one “screen” of vertical space • Start from any stage you want! • Each stage ends with a challenging boss • Wall layouts and spawn patterns are partially randomized Weapon Arrays, Special Moves, Power-Ups and More • Choose from a huge arsenal of weapons and special abilities • 10 different ships to choose from • Customize ship properties, such as gun mount locations • In-game power-ups with weapons, defenses and temporary powers (like Rapid Fire) • Power-down orbs with temporary inconveniences (like Weapon Freeze) Additional Configuration Options • Set number of lives, and number of times that special abilities can be used • Set graphics quality to one of three levels, and default ship speed

Screenshots

.Decluster Zero4 screens
Celtreos4 screens

Verdict

The call

The clearest difference is ratings volume: .Decluster Zero at 16 against Celtreos's 1. Celtreos's advantage is rating (5.0 vs 4.8). On price, review sentiment, update cadence and ads 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

.Decluster Zero costs $4.99 and Celtreos $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Celtreos holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: .Decluster Zero has 16 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 94% of .Decluster Zero's written reviews are positive against 100% of Celtreos's.

UpkeepUpdate frequency

.Decluster Zero ships an update every 2 months, Celtreos monthly. The most recent releases landed on September 22, 2026 and September 15, 2026 respectively.

Scorecard2 real differences · 8 level
.Decluster Zero versus Celtreos: the parameters behind the verdict, then further details
Parameter.Decluster ZeroCeltreos
Price$4.99$4.99
Rating4.8 (16 ratings)5.0 (1 ratings) — better
Positive reviews94.3% of reviews100.0% of reviews — better
Number of ratings16 — better1
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod, Apple TViPhone, iPad, iPod, Apple TV
Requires iOS12.0 — better13.0
Further details — not scored
Size54 MB132 MB
Age rating9+9+
DeveloperMASAYUKI ITOKevin Grant

Customer experience

.Decluster Zero

All ratings16 ratings
Positive93.8%
Neutral6.3%
Negative0.0%
Written reviews35 reviews
Positive94.3%
Neutral5.7%
Negative0.0%

Celtreos

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

.Decluster Zero

No in-app purchases

None

Celtreos

No in-app purchases

Questions

Is .Decluster Zero free?
.Decluster Zero costs $4.99, with no in-app purchases.
Is Celtreos free?
Celtreos costs $4.99, with no in-app purchases.
Which has better reviews, .Decluster Zero or Celtreos?
Celtreos is rated higher. .Decluster Zero averages 4.8 out of 5 from 16 ratings, while Celtreos averages 5.0 from 1 ratings.
Do .Decluster Zero or Celtreos have ads?
Neither .Decluster Zero nor Celtreos shows ads.
Which is updated more often, .Decluster Zero or Celtreos?
.Decluster Zero ships an update every 2 months, and Celtreos monthly. Most recently, .Decluster Zero was updated on September 22, 2026 and Celtreos on September 15, 2026.

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