Comparison

Rat Killer Robot Invasion vs Alien Run

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

Alien Run

Become an unstoppable alien invader in this action-packed survival game. Use your tentacle powers to capture fleeing humans and dominate the battlefield in an epic invasion scenario. Experience intense chases and strategic mob control as the ultimate predator.

Highlights
  • Alien invasion gameplay
  • Tentacle attack and capture
  • Mob control
  • Monster run challenges
  • Chase running humans
  • Strategic hunting
Features
Read full description

Alien Run - Tentacle Attack invites you to step into the role of an unstoppable alien invasion force in an epic battle of survival and conquest. In this thrilling alien game, you will experience a unique blend of high-stakes action and strategic mob control as you hunt down and capture fleeing humans. In Alien Run - Tentacle Attack, you are the alien invader wreaking havoc on Earth. Alien invasion has begun, and it’s your mission to attack and find the alien targets hiding among the chaos. Utilize your formidable abilities to move people, ensuring they don't escape your grasp. As humans scatter in fear, your objective is clear: kill it with fire and ensure no one escapes your wrath. Alien Isolation has never been so intense. You’re at the center of the action in this heart-pounding alien shooter running game, where every second counts. Engage in monster run challenges and face off against the most resilient of humans. Each chase is a test of your skills and adaptability in this dynamic alien invasion scenario. Alien Run - Tentacle Attack features a range of exciting gameplay elements: - Alien invasion gameplay that places you in the heart of the action. - Use your tentacle powers to attack and capture humans on the run. - Engage in killing games where you determine who dies first. - Manage mob control and navigate through monster draft scenarios as you - hunt your prey. - Participate in monster games that challenge your strategic and tactical skills. - Chase the running man and ensure no one escapes in this gripping monster run experience. With Alien Run - Tentacle Attack, you’ll find yourself deeply immersed in a running game world where the alien is the ultimate predator. Master the art of stealth and aggression to ensure a successful invasion. Will you dominate the battlefield, or will the humans manage to outwit you? Prepare yourself for an adrenaline-fueled adventure as you play the alien in this exhilarating running game chase. Alien Run - Tentacle Attack is where your alien invasion begins, and the hunt for humanity’s survival ends. Join the alien invasion—Alien Run - Tentacle Attack awaits your command!

Screenshots

Rat Killer Robot Invasion4 screens
Alien Run4 screens

Verdict

The call

The clearest difference is rating: Rat Killer Robot Invasion at 4.6 against Alien Run's 1.0. Rat Killer Robot Invasion also leads on ratings volume (2K vs 1) and review sentiment (31% vs 6%). On price, update cadence, ads and in-app purchases 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 Alien Run sells 17 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Rat Killer Robot Invasion holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Rat Killer Robot Invasion has 2K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 31% of Rat Killer Robot Invasion's written reviews are positive against 6% of Alien Run's.

UpkeepUpdate frequency

Rat Killer Robot Invasion ships an update every 10 days, Alien Run every 9 days. The most recent releases landed on September 24, 2026 and August 1, 2026 respectively.

Scorecard3 real differences · 7 level
Rat Killer Robot Invasion versus Alien Run: the parameters behind the verdict, then further details
ParameterRat Killer Robot InvasionAlien Run
PriceFreeFree
Rating4.6 (2K ratings) — better1.0 (1 ratings)
Positive reviews31.1% of reviews — better6.3% of reviews
Number of ratings2K — better1
Update frequencyEvery 10 daysEvery 9 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size353 MB132 MB
Age rating9+9+
DeveloperTapNationHAPPY GAME COMPANY TEKNOLOJI ANONIM SIRKETI

Customer experience

Rat Killer Robot Invasion

All ratings2,000 ratings
Positive91.5%
Neutral5.9%
Negative2.7%
Written reviews45 reviews
Positive31.1%
Neutral17.8%
Negative51.1%

Alien Run

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews32 reviews
Positive6.3%
Neutral12.5%
Negative81.3%

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

Alien Run

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
17 purchases

Alien Run

One-time17
  • Money Bundle 1$0.99
  • Skip It Bundle 1$0.99
  • Special Offer$0.99
Show 14 more
  • 1 day No Ads$0.99
  • Skip It Bundle 2$1.99
  • Skip It Bundle 3$4.99
  • No Ads$4.99
  • Mini Alien$5.99
  • Bundle 1$6.99
  • Bundle 3$6.99
  • Mini Alien + No Ads$8.99
  • Bundle 2$8.99
  • Money Bundle 4$9.99
  • Skip It Bundle 4$9.99
  • Bundle 4$14.99
  • Bundle 5$19.99
  • Bundle 6$39.99

Questions

Is Rat Killer Robot Invasion free?
Rat Killer Robot Invasion is free to download, with in-app purchases available.
Is Alien Run free?
Alien Run is free to download, with in-app purchases available.
Which has better reviews, Rat Killer Robot Invasion or Alien Run?
Rat Killer Robot Invasion is rated higher. Rat Killer Robot Invasion averages 4.6 out of 5 from 2K ratings, while Alien Run averages 1.0 from 1 ratings.
Do Rat Killer Robot Invasion or Alien Run have ads?
Both Rat Killer Robot Invasion and Alien Run show ads.
Which is updated more often, Rat Killer Robot Invasion or Alien Run?
Rat Killer Robot Invasion ships an update every 10 days, and Alien Run every 9 days. Most recently, Rat Killer Robot Invasion was updated on September 24, 2026 and Alien Run on August 1, 2026.

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