Alien Invasion is a thrilling idle RPG survival game where you command a venomous alien creature on a mission to dominate Earth. As the spider-like alien, your goal is to consume every idle human, evolve into a more powerful form, and build an unstoppable alien army. With each upgrade, you grow stronger, faster, and more efficient—but beware: monstrous bosses and relentless enemies stand in your way. Adapt, evolve, and conquer in this addictive offline survival experience.
Evolve and Dominate
- Control a spider alien that evolves with every human it devours
- Unlock new abilities and forms as you progress through levels
- Strengthen your alien’s attack speed, catching radius, and capacity to maximize efficiency
Epic Boss Battles
- Face off against powerful monster bosses that challenge your survival strategy
- Use your evolved venom and tactical upgrades to overcome each new threat
- Only the most advanced alien forms can survive these high-stakes encounters
Build Your Alien Army
- Create and command a growing force of spider alien monsters
- Expand your influence by spreading venom and converting enemies into allies
- Strategically deploy your army to dominate every zone and eliminate resistance
Upgrade and Progress
- Continuously upgrade your alien’s core stats to improve performance
- Complete quests to unlock new levels, abilities, and locations
- Progress through increasingly difficult stages filled with untamed enemies
Immersive Visuals and Gameplay
- Enjoy stunning graphics and atmospheric sound design that bring the alien world to life
- Experience smooth idle gameplay with satisfying progression mechanics
- Play offline and continue evolving your alien even when not actively engaged
Key Features
- Evolve your alien with new abilities and forms
- Crush waves of humans and challenge monstrous bosses
- Upgrade speed, capacity, and radius for maximum efficiency
- Build and lead your own alien army
- Complete quests and unlock new zones
- Immerse yourself in high-quality visuals and sound
- Play offline and enjoy idle progression
Frequently Asked Questions
Q: Is this an idle game?
Yes, Alien Invasion features idle mechanics that allow for passive progression.
Q: Can I play offline?
Yes, the game supports offline play with full functionality.
Q: What is the main objective?
Your goal is to evolve your alien, defeat humans and bosses, and dominate each level.
Q: Are there boss fights?
Yes, you’ll face powerful bosses that require strategic upgrades to defeat.
Q: Can I build an alien army?
Yes, you can create and command a growing force of spider alien monsters.
Q: Are there regular updates?
Yes, the game receives new features and content updates regularly.
Q: Is the game free to play?
Yes, it is free with optional in-app purchases.
Q: What kind of upgrades are available?
You can upgrade your alien’s speed, attack radius, and capacity.
Version History
v4.19.00 —— 7 Sep 2025
Vampire Invasion: Defend your domain and earn immortal rewards
Dragon Event: Battle mythical dragons and harness their ancient power
Snake Invasion: Extract lethal toxins from serpentine foes for powerful upgrades
Update now and keep invading!
v4.18.00 —— 24 Aug 2025
Same content as v4.19.00—Vampire, Dragon, and Snake Invasions return with galactic stakes
v4.17.00 —— 20 Jun 2025
Demon Armageddon: The Gates of Hell have opened—prepare for infernal combat
Genie Invasion: Face deceptive genies with dangerous wishes
Meteor Event: Survive a cosmic storm of meteors raining down from space
Evolve and overpower!
