Alien Invasion: RPG Idle Space

Contains adsIn-app purchases
4.1
301K reviews
10M+
Downloads
Content rating
PEGI 7
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About this game

Spread your venom, defeat, evolve, and dominate in this addictive Alien Invasion: RPG idle survival game. Command an alien seeking supremacy, growing its army by eating every idle human. But beware – a powerful monster boss stands in your path, determined to halt your ascent. And you cannot kill it with fire, so you need to adapt and evolve your alien venom to triumph!


Defeat for an eternal evolution: Become the ultimate alien overlord by defeating each idle human and evolving. Strengthen your spider alien's capacity, attack speed, and catching radius to devour foes more efficiently. Make sure there isn’t a single survivor of your powerful venom!

Face powerful bosses: Epic boss battles test your strategic skills. Only the strongest aliens survive and thrive. Can you emerge victorious while playing their survival games? This is the Alien Invasion: Idle RPG game and you are the main character - show them your full venom power!

Fight in epic battles: There is no alien isolation for you in your base. Different enemies plan a galaxy attack and come to find the alien, fearing its powerful monster evolution. Always upgrade your skills, grow your alien and catch them all - your mission will be rewarded!





FEATURES:
EVOLVE your spider alien for new abilities and dominance.
CRUSH waves of humans, challenge mighty monster bosses.
UPGRADE capacity, speed, and radius for efficiency.
CREATE your own army of spider alien monsters.
PROGRESS through levels by completing quests.
UNLOCK new locations and face untamed enemies.
IMMERSE yourself in stunning visuals and sound.


You don’t need to search for more alien games - find the alien power within you, defend your base against every enemy and come out as a victorious survivor!
Dominate or be defeated by the human crowd evolution – download Alien Invasion now, the only one of the survival RPG offline idle games you’d endlessly enjoy, and assert extraterrestrial dominance!

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Updated on
Jun 4, 2025
Events & offers

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App activity and 2 others
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.1
287K reviews
kenorb
August 31, 2024
Kills your time, strategy as well. Free to play, no forced ads, works offline. Map is organised, good dynamics/physics. When you think you finished game, new winter area opens up. Alien constantly evolves, and your orientation and memory. When you hit impossible and you're about to uninstall, you still find the way. You think you cheat game by AFK playing, but game cheats you, so you play more to realize, OMG, I'm addicted and need to run this game 24h/7 to win, smart. Game finishes post 15lvl
13 people found this review helpful
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Daniel Allen
August 27, 2024
The game becomes boring after a while, crawling around collecting the same trash. Monthly subscription is around £15 a month, expensive and isn't worth it. 3 upgrades are in game shop and require money to buy gems to upgrade. Upgrading skills take too long. Not halfway through upgrading skills, but looking at the scaling, late game might require you to spend money to upgrade or loads of hours grinding. Ranked events are battle of the whales.
29 people found this review helpful
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Jack O'Sullivan
April 17, 2025
Excellent game. I've really enjoyed casually on playing this game, levelling up my alien and the satisfying feeling when they chomp up the humans. Unfortunately I think I've had all the game can offer now. I've cleared the laboratory and was incredibly disappointed there was nowhere to go when I unlocked the door. Would love you to bring out some new levels.
7 people found this review helpful
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