232+ iOS apps & games curated and reviewed
With an average user rating of 4.2★, the alien games strategy category is one of the App Store's strongest. Browse all 232+ apps and games we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (14K) | Yes | Yes | Aug 2026 |
| 2 |  | Free | 4.7★ (266K) | Yes | Yes | Aug 2026 |
| 3 |  | Free | 4.8★ (127K) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 4.7★ (18K) | Yes | Yes | Aug 2026 |
| 5 |  | Free | 4.3★ (486) | Yes | Yes | Aug 2026 |
| 6 |  | Free | 3.3★ (131) | Yes | Yes | May 2026 |
| 7 |  | Free | 3.1★ (36) | No | No | Aug 2026 |
| 8 |  | Free | 4.5★ (1.3K) | No | Yes | Aug 2026 |
Engage in fast-paced tower defense battles against alien invaders. Deploy a variety of towers, heroes, and infantry to defend Earth. Upgrade your defenses and strategize to overcome hordes of enemies across numerous levels and challenges.
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.
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.
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.
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.
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.
Engage in a thrilling alien invasion defense. Wield powerful weapons and advanced scanners to eliminate extraterrestrial threats and protect city civilians. Upgrade your arsenal and skills to overcome diverse alien types and challenging missions.
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.
Defend your sheep from alien invaders in this classic 3D tower defense strategy game. Deploy a variety of upgradeable weapons and think fast to survive over 100 maps and endless waves of enemies. Compete with friends on global leaderboards.
Command a fleet of starships in a real-time strategy war against hostile aliens. Build your armada, harvest resources, and use tactical formations and superweapons to protect Earth and its colonies from annihilation.
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.
Defend your flock from an alien invasion in this strategic tower defense game. Deploy a variety of updated and new weapons across numerous maps and campaigns. Utilize unique character abilities and optional in-app purchases to overcome challenging enemies and bosses.
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.
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.
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.
Engage in a thrilling zombie and alien invasion survival game. Equip yourself with a variety of futuristic weapons and gears to battle hordes of enemies. Experience an immersive storyline with numerous missions and challenging gameplay modes.
Engage in a microscopic strategy game within an alien organism. Control antibody cells to capture enemy cells by drawing DNA tentacles, managing energy, and defending against an intelligent opponent. Features a campaign mode and online multiplayer battles.
Engage in a humorous hide-and-seek shooter where you must identify aliens disguised as everyday objects. Blast them with comical weapons before time runs out in fast-paced, bite-sized levels.
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.
Embark on an evolutionary journey as a lost alien trying to find your way home. Consume smaller aliens to grow stronger while avoiding larger predators in challenging levels.