Comparison

Rat Killer Robot Invasion vs Alien Attack Idle Simulator 3D

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 Attack Idle Simulator 3D

Features
Read full description

Welcome to Alien Attack Idle Simulator! Dive into an exhilarating world where strategy meets chaos in this unique idle RPG experience. As an intergalactic commander, you’ll lead your alien forces in an invasion to conquer planets, fend off enemies, and build your empire in a sandbox environment. If you enjoy games like Venom Survive, Pirates, or Infinite Shooter, you’ll love the thrilling gameplay and endless possibilities that "Alien Attack Idle Simulator" offers! Game Features: Engaging Idle Gameplay: Experience the thrill of an idle simulator where your alien army continues to grow and evolve, even when you’re not actively playing. Collect resources, upgrade your units, and strategize your attacks to maximize your power during your invasion. Epic Alien Battles: Engage in fierce battles against rival factions and otherworldly creatures. Your strategic decisions will determine the fate of your alien empire during the invasion. Will you choose to attack aggressively or build your defenses? Customizable Alien Forces: Create and customize your own alien troops! Choose from various species, each with unique abilities and strengths. Tailor your strategy by combining different alien units to create an unstoppable force for your invasion. Sandbox Environment: Explore a vast sandbox universe filled with diverse planets and environments. Each planet presents its own challenges and rewards, making every conquest during your invasion a new adventure. Resource Management: Gather resources to fuel your alien army’s growth. Manage your idle resources wisely to ensure your troops are always ready for the next invasion. Quests and Events: Participate in exciting quests and limited-time events to earn exclusive rewards and bonuses. Stay engaged with new content that keeps the gameplay fresh and exciting, especially during special invasion events. Multiplayer Mode: Challenge your friends or players from around the world in thrilling multiplayer battles. Show off your strategic skills and prove that your alien forces are the mightiest in the galaxy during the ultimate invasion! Stunning Graphics and Sound: Immerse yourself in beautifully designed alien worlds with captivating graphics and sound effects that enhance your gaming experience. Why Choose Alien Attack Idle Simulator? With a blend of idle mechanics and RPG elements, "Alien Attack Idle Simulator" offers a unique twist on traditional gaming. Unlike other games like Venom Survive, which focuses on survival, or Pirates, which emphasizes adventure, our simulator allows you to build a powerful alien empire at your own pace while planning your next invasion. The strategic depth and customization options set it apart from competitors, making it a must-try for fans of idle and RPG games. Download "Alien Attack Idle Simulator" today and start your journey toward intergalactic domination. Will you rise to the challenge and lead your alien forces in a successful invasion to victory?

Screenshots

Rat Killer Robot Invasion4 screens
Alien Attack Idle Simulator 3D4 screens

Verdict

The call

The clearest difference is update cadence: Alien Attack Idle Simulator 3D at every 4 days against Rat Killer Robot Invasion's every 10 days. 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 Alien Attack Idle Simulator 3D sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Rat Killer Robot Invasion ships an update every 10 days, Alien Attack Idle Simulator 3D every 4 days. The most recent releases landed on September 24, 2026 and May 16, 2026 respectively.

Scorecard1 real difference · 9 level
Rat Killer Robot Invasion versus Alien Attack Idle Simulator 3D: the parameters behind the verdict, then further details
ParameterRat Killer Robot InvasionAlien Attack Idle Simulator 3D
PriceFreeFree
Rating4.6 (2K ratings) — better—
Positive reviews31.1% of reviews—
Number of ratings2K — better—
Update frequencyEvery 10 daysEvery 4 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size353 MB175 MB
Age rating9+4+
DeveloperTapNationAPPWILL COMPANY LTD

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 Attack Idle Simulator 3D

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
11 purchases

Alien Attack Idle Simulator 3D

One-time11
  • Little kit with currencys$1.99
  • Classic starter pack$1.99
  • Premium personalized kit$1.99
Show 8 more
  • Premium starter pack$3.29
  • All premium starter pack$3.69
  • Medium kit with currencys$5.49
  • 600 Crystals$7.39
  • Big kit with currencys$8.99
  • All kit with currencys$9.29
  • 1100 Crystals$12.99
  • 1000 Crystals$12.99

Questions

Is Rat Killer Robot Invasion free?
Rat Killer Robot Invasion is free to download, with in-app purchases available.
Is Alien Attack Idle Simulator 3D free?
Alien Attack Idle Simulator 3D is free to download, with in-app purchases available.
Do Rat Killer Robot Invasion or Alien Attack Idle Simulator 3D have ads?
Both Rat Killer Robot Invasion and Alien Attack Idle Simulator 3D show ads.
Which is updated more often, Rat Killer Robot Invasion or Alien Attack Idle Simulator 3D?
Rat Killer Robot Invasion ships an update every 10 days, and Alien Attack Idle Simulator 3D every 4 days. Most recently, Rat Killer Robot Invasion was updated on September 24, 2026 and Alien Attack Idle Simulator 3D on May 16, 2026.

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