Comparison

Rat Killer Robot Invasion vs Line Impossible

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

Head to head
About

Rat Killer Robot Invasion

Embark on an epic quest to exterminate waves of invading rats with futuristic weapons. Collect in-game currency to unlock new zones, upgrade your robot companion, and customize its appearance. Explore diverse worlds and face challenging puzzles and boss battles.

Highlights
  • Rat extermination action
  • Robot customization
  • Weapon collection and upgrades
  • Diverse world exploration
  • Puzzles and boss battles
  • Collect money and gems
Features
Read full description

Rat Killer Robot Invasion: Save the World! The world is under siege by a relentless rat army! It's up to you, the ultimate Rat Killer Robot, to restore peace and cleanliness. Are you up for the challenge? Rat-Blasting Action: Armed with powerful weapons, embark on an epic quest to exterminate the rat invaders. Zap, blast, and splat your way through waves of rats to protect the world! Collect & Upgrade: While on your rat-slaying adventure, gather valuable money and glittering gems. Use them to unlock new zones, buy futuristic weapons, and upgrade your trusty robot companion. Customize your robot with cool, eye-catching designs. Explore Diverse Worlds: Travel through various zones, each with unique challenges and rat foes. From city streets to hidden sewers, the battle against the rat invasion rages on! Game Features: - Non-stop rat extermination action! - Endless customization options for your robot. - A plethora of weapons to choose from. - Exciting puzzles and epic boss battles. - Explore different zones and unlock secrets. - Collect money, gems, and robot parts. - Free to play! Join the Rat Killer Robot Invasion and be the hero the world desperately needs

About

Line Impossible

Features
Read full description

Line Impossible is a clean, neon puzzle game built around one simple rule: Trace every dot in one continuous line. Start with Classic Mode and learn to read each board, avoid dead ends, and complete every route with the fewest mistakes. Then unlock Impossible Mode, where every move matters even more: • Navigate Void spaces • Collect Keys before reaching Locks • Solve deeper route puzzles with tighter decisions • Master increasingly difficult board layouts Play your way through: • Classic Mode – A structured campaign of puzzle levels • Impossible Mode – Key, Lock, and Void-based challenges • Daily Challenge – A new puzzle every day with streak rewards • Challenge Circuit – 50 special boards with unique rules and escalating difficulty Customize your experience with collectible visual themes and line styles, then replay your best runs and improve your score. Can you trace every dot without getting trapped?

Screenshots

Rat Killer Robot Invasion4 screens
Line Impossible4 screens

Verdict

The call

The clearest difference is iOS requirement: Rat Killer Robot Invasion at 12.0 against Line Impossible's 15.0. On price, ads, in-app purchases 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. Rat Killer Robot Invasion sells 17 in-app purchases, starting at $4.99 per 7 days and Line Impossible sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Rat Killer Robot Invasion versus Line Impossible: the parameters behind the verdict, then further details
ParameterRat Killer Robot InvasionLine Impossible
PriceFreeFree
Rating4.6 (2K ratings) — better—
Positive reviews31.1% of reviews—
Number of ratings2K — better—
Update frequencyEvery 10 days—
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size353 MB114 MB
Age rating9+4+
DeveloperTapNationPham Duy Nhat

Bugs and requests

Rat Killer Robot Invasion

Reported bugs

8 issues
  • Character flipping upside down or flying across the board
  • NPCs getting stuck in portals or on walls
  • Incorrect item/reward drops from chests
  • Launching player off the screen
  • Robot unable to keep legs on the ground and rolling around
Show 3 more
  • Collector robot not depositing cash
  • Portal progression not working as intended
  • Crashes on launch

Requested features

4 requests
  • Optimize performance and fix bugs
  • Improve game balance and progression
  • Add more content and features
  • Provide better customer support

Line Impossible

Not enough reviews yet to summarise bugs or requests.

In-app purchases

17 purchases

Rat Killer Robot Invasion

Subscriptions3
  • VIP Membership - Weekly$4.997 Days
  • Elite Membership - Weekly$8.997 Days
  • Elite Membership - Monthly$24.991 Month
One-time14
  • Skip It - Small Pack$0.99
  • One Time Offer$1.99
  • Handful Of Crystals$1.99
Show 11 more
  • Bunch Of Crystals$4.99
  • Skip It - Medium Pack$8.99
  • Pile Of Crystals$8.99
  • Rats Pass$9.99
  • Small Bundle$11.99
  • Master Mode$15.99
  • Starter Pack$15.99
  • Medium Bundle$24.99
  • Limited Offer Pack$29.99
  • Premium Offer$39.99
  • Crate Of Crystals$89.99
1 purchases

Line Impossible

One-time1
  • Remove Ads$4.99

Questions

Is Rat Killer Robot Invasion free?
Rat Killer Robot Invasion is free to download, with in-app purchases available.
Is Line Impossible free?
Line Impossible is free to download, with in-app purchases available.
Do Rat Killer Robot Invasion or Line Impossible have ads?
Both Rat Killer Robot Invasion and Line Impossible show ads.

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