141+ iOS apps & games curated and reviewed
Looking for free alien invasion puzzle apps and games? 19 of our 141+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
Command an alien and grow its army by defeating humans in this idle RPG. Evolve your alien with new abilities, upgrade its stats, and face challenging boss battles to achieve extraterrestrial dominance.
This game blends match-3 and sliding tile puzzles to evolve aliens. Match tiles to hatch and evolve creatures, harvest resources, and build your ultimate alien hive. Strategically defeat villainous bots and uncover the planet's mysteries.
Engage in a thrilling 3D invasion game where you must identify and eliminate hidden aliens disguised as ordinary people. Utilize scanners and blasters to complete levels, unlock new weapons, and rescue citizens from alien isolation across various city suburbs.
Lead an alien invasion in this fast-paced strategy game. Choose from various alien races, harvest resources, and upgrade your forces to conquer Earth. Experience challenging gameplay with multiple difficulty levels.
Hunt down disguised alien imposters hiding among humans and everyday objects. Use scanning equipment and futuristic guns to identify and capture them before they invade Earth. Merge captured aliens to discover new superior forms and unlock powerful upgrades.
Engage in a unique blend of RPG, puzzle, and strategy to defend planets from robot invaders. Plan alien paths, hatch new creatures, and collect power cards to overcome hundreds of challenging levels and giant boss robots.
Guide an alien hero through diverse worlds to rescue his kidnapped pet. This puzzle adventure game lets you manipulate the environment itself to create paths and overcome obstacles. Even humorous failures can be undone by rewinding time.
Become an alien invader and crush cities on Earth. Grow by abducting people and destroying buildings, but beware of other aliens who will try to swallow you. Compete against others in fast-paced, timed invasion battles.
Defend against an alien invasion in this RPG where you gather resources, upgrade your spaceship, and battle waves of extraterrestrial foes. Craft powerful upgrades and unlock new abilities to survive the relentless assault and claim victory in this captivating space adventure.
Defend a Texan farm from alien invaders in this action-packed runner and shooter game. Utilize a variety of crazy weapons and vehicle upgrades to stop the extraterrestrial corn thieves and protect the harvest. Enjoy a humorous story with redneck characters and challenging gameplay.
Engage in a thrilling tower defense game where you pilot a flying saucer to devour objects, gather resources, and build powerful cannons. Strategically defend your base against relentless zombie invasions by upgrading your saucer and fortifying your defenses.
Engage in a match-three puzzle adventure to defeat invading cute aliens. Swap and combine colorful tiles to solve riddles, blitz the alien hive, and become a commander hero in space.
Explore a mysterious military base in Area 51, now inhabited by six ocean aliens. Uncover their secrets, evade their pursuit, and reveal the truth behind the lost connection. Navigate bunkers, hangars, and UFO sites while collecting items to stun your pursuers.
Embark on an action-packed mission to find hidden aliens disguised as everyday objects. Use a scanner to detect them and eliminate them with a shock gun before time runs out. Explore diverse environments, upgrade tools, and overcome challenges to save humanity.
Embark on a sci-fi adventure as a brave spaceman in this rogue-like mobile game. Battle alien hordes, explore space, and uncover universal secrets. With stunning graphics and immersive gameplay, you'll need all your skills to survive.
Embark on a historical adventure to find and eliminate alien impostors who have infiltrated different eras. Travel through time, from the Stone Age to the future, scanning for disguised aliens and using your blaster to stop their invasion. Save humanity by identifying and defeating these extraterrestrial threats.
Explore and repair intricate alien machines in this mystery puzzle game. Use logic and observation to unravel a galaxy-spanning story. If you enjoy brain teasers and narrative-driven experiences, this game offers a unique challenge.
Engage in stealthy combat against aliens to rescue crewmates. Utilize camouflage, transform, and aim for precise kills. Collect gems to upgrade your arsenal and become the ultimate alien hunter.
Engage in an addictive puzzle adventure matching colorful aliens. This retro-inspired game offers classic match-3 mechanics with exciting power-ups and challenging gameplay modes, including timed and endless play.