

In Alien Invasion: RPG Idle Space, your path from rookie extraterrestrial to ultimate predator hinges entirely on upgrades. As you munch through human settlements and gather precious biomass, you'll unlock a comprehensive enhancement system that morphs your basic alien into a terrifying evolutionary marvel. Whether boosting your hunting efficiency, streamlining your digestion process, or acquiring disturbing new mutations, upgrading is what separates dominant invaders from cosmic roadkill. This guide breaks down each upgrade option to help newcomers optimize their extraterrestrial reign.
Understanding Upgrades in Alien Invasion
The entire premise of Alien Invasion casts you as a hungry extraterrestrial harvesting human settlements. Each consumed human provides meat and bones - dual currencies fueling your evolutionary progress. Visit the purple tentacle icon in the bottom-right corner to access your upgrade menu, where you'll discover various mutations and stat boosts.

Upgrades represent the core progression system, allowing you to boost survival odds against increasingly hostile human resistance. Choosing which enhancements to prioritize early can dramatically impact your efficiency.
The Complete Upgrade Breakdown
Alien Invasion offers diverse upgrade paths rather than forcing linear progression. While you'll eventually maximize everything, smart early investments can accelerate your dominance. Here's what each enhancement brings:
- Catching Speed: Reduces the capture time indicated by circling timers above humans. Higher ranks let you swarm through crowds faster.
- Cargo Capacity: Expands your carrying limit before needing to return to base. Vital for minimizing downtime during farming sessions.
- Move Speed: Increases locomotion velocity without affecting hunting mechanics. Crucial for map navigation and rapid resource delivery.
- Catching Tentacles: Adds supplementary appendages enabling multi-target harvesting. Doubles your farming efficiency per upgrade.
- Catching Radius: Widens the white circular detection zone around your alien. Reduces need for precision positioning during hunts.
Pro Tip: For the ultimate gaming experience, try Alien Invasion on BlueStacks using proper PC controls.