Comparison

Idle Alien vs Destroy Planets Idle Game

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

Head to head
About

Idle Alien

Engage in a hyper-casual space war by tapping to destroy hostile spaceships. Upgrade your alien heroes to increase damage and unlock new abilities. Enjoy a stress-relieving, offline gaming experience.

Highlights
  • Tap to attack spaceships
  • Upgrade alien heroes
  • Boost damage and gold
  • Offline gameplay
  • Stress-relieving mechanics
  • Unlock new aliens
Features
Read full description

In a galaxy far far away A bunch of hostile spaceships are traveling across universe seeking for destruction Angered by their actions, Alien race rises to fight the oppression They train and start to awakened their inner energy, becoming the Heroes Those Heroes now fly across the universe to protect their homeland So the war continues Idle Alien is a hyper casual game with alien and space theme. Easy to play, stress releasing, and no network required. Control Alien as a Hero to destroy all spaceships. Open more Alien enjoy more fun. HOW TO PLAY: 1 - Tap spaceship to attack 2 - Hide Alien to help you 3 - Update Alien to get more damage 4 - Destroy all spaceships to win level BOOST SYSTEM: 1 - Tap Boost: x10 your tap damage 2 - Double Damage: x2 all Alien damage 3 - Double Gold: x2 money 4 - Double Speed: x2 Speed for all Aliens. If you love the game. Give us your lovely comment. Our page: https://www.facebook.com/idlealien/ Enjoy The Game.

About

Destroy Planets Idle Game

Build, launch, and merge a fleet of space ships to obliterate planets and asteroids. Upgrade your fleet, unlock new celestial bodies, and collect resources in this addictive idle space exploration game.

Highlights
  • Build and launch diverse space ships
  • Merge ships to create a powerful fleet
  • Destroy planets and celestial objects
  • Upgrade ships with boosters and weapons
  • Unlock new planets and rewards
  • Collect in-game currency
  • Offline play capability
Features
Read full description

Do you love space exploration and destruction? Do you want to create your own fleet of powerful space ships and use them to obliterate planets and asteroids? If yes, then Space Merge: Idle Planet Destroyer is the game for you! Space Merge: Idle Planet Destroyer is an addictive idle game where you can build, launch, and merge space ships to create the ultimate space force. You can also use your space ships to destroy planets and huge objects in the galaxy and earn coins and gems. In Space Merge: Idle Planet Destroyer, you can: Build and launch different types of space ships, from rockets to UFOs, and watch them fly in the sky. Merge two space ships of the same level to create a more powerful one. The higher the level, the more damage your space ship can do. Use your space ships to destroy planets and huge objects in the galaxy. The bigger the target, the more rewards you get. Upgrade your space ships with various boosters and weapons to increase their speed, power, and durability. Unlock new planets and objects to destroy as you progress in the game. Collect coins and gems from your space ships and from destroying planets and objects. Use them to buy more space ships and upgrades. Enjoy stunning graphics and sound effects that will make you feel like you are in outer space. Space Merge: Idle Planet Destroyer is a fun and relaxing game that will keep you entertained for hours. You can play it anytime, anywhere, even when you are offline. You can also watch your space ships fly and destroy planets while you are away. If you are a fan of idle games, space games, or merge games, then Space Merge: Idle Planet Destroyer is the perfect game for you. Download it now for free and start your space adventure!

Screenshots

Idle Alien4 screens
Destroy Planets Idle Game4 screens

Verdict

The call

The clearest difference is review sentiment: Idle Alien at 100% against Destroy Planets Idle Game's 27%. Idle Alien also leads on rating (4.5 vs 2.1) and ratings volume (123 vs 19). Destroy Planets Idle Game's advantage is update cadence (daily vs every 11 days) and iOS requirement (12.0 vs 15.6). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Idle Alien holds the better App Store score, 4.5 against 2.1. That said, the two scores are not equally well evidenced: Idle Alien has 123 ratings behind it against 19, so its average is the more settled of the two. Written reviews point the same way: 100% of Idle Alien's written reviews are positive against 27% of Destroy Planets Idle Game's.

UpkeepUpdate frequency

Idle Alien ships an update every 11 days, Destroy Planets Idle Game daily. The most recent releases landed on July 4, 2026 and July 8, 2026 respectively.

Scorecard5 real differences · 5 level
Idle Alien versus Destroy Planets Idle Game: the parameters behind the verdict, then further details
ParameterIdle AlienDestroy Planets Idle Game
PriceFreeFree
Rating4.5 (123 ratings) — better2.1 (19 ratings)
Positive reviews100.0% of reviews — better27.3% of reviews
Number of ratings123 — better19
Update frequencyEvery 11 daysDaily — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supportedAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size295 MB173 MB
Age rating17+4+
DeveloperViet Game Development CorporationUtkarsh Vaidya

Customer experience

Idle Alien

All ratings123 ratings
Positive87.0%
Neutral7.3%
Negative5.7%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Destroy Planets Idle Game

All ratings18 ratings
Positive22.2%
Neutral5.6%
Negative72.2%
Written reviews11 reviews
Positive27.3%
Neutral9.1%
Negative63.6%

In-app purchases

None

Idle Alien

No in-app purchases

None

Destroy Planets Idle Game

No in-app purchases

Questions

Is Idle Alien free?
Idle Alien is free to download, with no in-app purchases.
Is Destroy Planets Idle Game free?
Destroy Planets Idle Game is free to download, with no in-app purchases.
Which has better reviews, Idle Alien or Destroy Planets Idle Game?
Idle Alien is rated higher. Idle Alien averages 4.5 out of 5 from 123 ratings, while Destroy Planets Idle Game averages 2.1 from 19 ratings.
Do Idle Alien or Destroy Planets Idle Game have ads?
Both Idle Alien and Destroy Planets Idle Game show ads.
Which is updated more often, Idle Alien or Destroy Planets Idle Game?
Idle Alien ships an update every 11 days, and Destroy Planets Idle Game daily. Most recently, Idle Alien was updated on July 4, 2026 and Destroy Planets Idle Game on July 8, 2026.

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