159+ iOS apps & games curated and reviewed
Out of 159+ alien world apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
Engage in thrilling 3D Sci-Fi war missions with unlimited sniper and commando action. This offline FPS game offers a campaign mode and team deathmatch with intelligent enemies. Become a super soldier and conquer the battlefield in this free-to-play adventure.
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.
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.
Embark on an epic adventure to save the world from alien hordes in this action-packed shooter. Team up with friends in co-op mode or go solo, customizing your loadout with a vast array of weapons and armor. Explore diverse arenas, battle unique bosses, and unlock powerful gear.
Embark on a terrifying quest for survival aboard a space station. Unprepared and underequipped, you must use your wits and courage to escape an unknown menace. Experience a faithful mobile replication of the classic survival horror game, complete with AAA visuals and an arresting narrative.
Pilot a lone spaceship to defend Earth from relentless alien swarms in this classic space shooter. Upgrade your weapons and skills to overcome increasingly difficult challenges across numerous levels and intense boss battles.
Instantly generate unlimited story elements, characters, creatures, weapons, and entire worlds for writers and RPG creators. Explore vast galaxies or detailed towns with endless random possibilities. Save and share your creations for free.
Build and expand your own planet from the ground up in this addictive idle clicker game. Upgrade your world to generate energy, colonize new areas, and introduce life. Can you unlock the atmosphere and create a thriving planet?
Experience mesmerizing 3D alien worlds and space journeys with this music visualizer. Relax, meditate, or enhance parties with dynamic, randomly generated visuals. Supports TV Airplay and interactive control.
Create and shape your own pixel worlds with this god simulation sandbox game. Spawn creatures, build civilizations, and unleash powerful disasters or creative tools to watch life evolve. Experiment with various powers and enjoy offline play.
Experience classic arcade air combat with modern visuals and fluid controls. Pilot legendary warplanes through over 900 levels, engage in real-time PvP battles, and join clans for team missions. Enjoy intense dogfights and boss battles anytime, anywhere.
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.
Simulate the terraforming of planets using real scientific principles. Cultivate life, manage resources, and build civilizations on various worlds, from our solar system to fictional planets and moons. Encounter alien life and defend your settlements from cosmic threats.
Command a fleet of mining robots to explore planets, extract resources, and build an industrial empire. Earn idle cash, upgrade your operations, and compete in special tournaments for crypto rewards. Become a galactic millionaire in this idle-clicker tycoon game.
Embark on an epic space adventure as an astronaut exploring alien planets. Harvest resources, battle extraterrestrial foes, and upgrade your skills to uncover cosmic secrets. This game offers a vast universe to discover and conquer.
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.
Engage in open conversations about your interests, feelings, and thoughts with friendly virtual companions. Share photos to collaboratively design a unique planet. Find a supportive presence for any topic you wish to discuss.
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.
Build and manage a secret desert facility to research salvaged alien technology. Expand your operations, unlock advanced research, and defend against government raids and alien interference. Your strategic decisions will determine the fate of your facility and potentially the world.