Comparison

Idle Alien vs Slime Weapon Master

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

Slime Weapon Master

Build and sell weapons in your own factory. Upgrade your production lines to forge higher-grade weapons faster and earn more gold. Expand your operations to maximize profits and fill your treasure chests.

Highlights
  • Build weapons
  • Sell weapons
  • Upgrade production lines
  • Earn gold coins
  • Open new production lines
  • Increase weapon grade
Features
Read full description

You have a weapons factory, all you need to do is get them to build as many weapons as possible. Starting from a small forging table, weapons are shipped and sold, and gold coins are loaded into treasure chests. Upgrade with gold. The higher the grade, the faster it can be built and the higher the price. Open a new production line, ship and sell your weapons, and fill your gold chests!

Screenshots

Idle Alien4 screens
Slime Weapon Master4 screens

Verdict

The call

The clearest difference is review sentiment: Idle Alien at 100% against Slime Weapon Master's 55%. Idle Alien also leads on in-app purchases (none vs 11) and update cadence (every 11 days vs every 2 months). Slime Weapon Master's advantage is rating (4.8 vs 4.5) and ratings volume (5.5K vs 123). On price, ads 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

Both are free to download. Slime Weapon Master sells 11 one-off in-app purchases. Idle Alien asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Slime Weapon Master holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Slime Weapon Master has 5.5K ratings behind it against 123, so its average is the more settled of the two. Written reviews complicate that: 100% of Idle Alien's written reviews are positive against 55% of Slime Weapon Master's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Idle Alien ships an update every 11 days, Slime Weapon Master every 2 months. The most recent releases landed on July 4, 2026 and September 24, 2026 respectively.

Scorecard7 real differences · 3 level
Idle Alien versus Slime Weapon Master: the parameters behind the verdict, then further details
ParameterIdle AlienSlime Weapon Master
PriceFreeFree
Rating4.5 (123 ratings)4.8 (5.5K ratings) — better
Positive reviews100.0% of reviews — better54.5% of reviews
Number of ratings1235.5K — better
Update frequencyEvery 11 days — betterEvery 2 months
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size295 MB172 MB
Age rating17+12+
DeveloperViet Game Development CorporationSolid Games

Customer experience

Idle Alien

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

Slime Weapon Master

All ratings5,450 ratings
Positive96.5%
Neutral2.1%
Negative1.4%
Written reviews110 reviews
Positive54.5%
Neutral6.4%
Negative39.1%

Bugs and requests

Idle Alien

Not enough reviews yet to summarise bugs or requests.

Slime Weapon Master

Reported bugs

3 issues
  • Game crashes and freezes
  • Battlefield mode not functioning properly
  • Issues with ad playback and rewards

Requested features

3 requests
  • More events and content updates
  • Faster slime and weapon crafting
  • Improved progression system

In-app purchases

None

Idle Alien

No in-app purchases

11 purchases

Slime Weapon Master

One-time11
  • gem1$1.99
  • store_prop3$2.99
  • store_prop4$2.99
Show 8 more
  • gem2$4.99
  • noads1$4.99
  • store_bundle1$4.99
  • gem3$9.99
  • noad2$9.99
  • gem4$19.99
  • gem5$49.99
  • gem6$99.99

Questions

Is Idle Alien free?
Idle Alien is free to download, with no in-app purchases.
Is Slime Weapon Master free?
Slime Weapon Master is free to download, with in-app purchases available.
Which has better reviews, Idle Alien or Slime Weapon Master?
Slime Weapon Master is rated higher. Idle Alien averages 4.5 out of 5 from 123 ratings, while Slime Weapon Master averages 4.8 from 5.5K ratings.
Do Idle Alien or Slime Weapon Master have ads?
Both Idle Alien and Slime Weapon Master show ads.
Which is updated more often, Idle Alien or Slime Weapon Master?
Idle Alien ships an update every 11 days, and Slime Weapon Master every 2 months. Most recently, Idle Alien was updated on July 4, 2026 and Slime Weapon Master on September 24, 2026.

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