Apps Like HARM Invaders for iPhone and iPad
Explore alien worlds and fight
Explore a sci-fi space combat game set in 2115. Pilot a space fighter to investigate a mysterious signal near Mars. Engage in battles against alien replicating machines. Use strategic maneuvers to destroy the and prevent it from reaching Earth.
HARM Invaders screenshots
Ranked alternatives
Showing 1–20 of 1,000 ranked alternatives.


Spaceflight Simulator
Spaceflight Simulator UK Ltd
Build rockets, explore space, track physics
Build and customize rockets to explore a realistically scaled universe. Navigate using real orbital mechanics and travel to distant planets and objects. Interact with Mercury, Venus, Earth, the Moon, Mars, Phobos, and Deimos.

Galaxy Attack: Alien Shooter
DINO GAME LIMITED
Defend Earth and destroy ships
Space shooting game allows players to control a spaceship and defend Earth from attacks. Move and shoot enemies using touch controls. Upgrade spacecraft to enhance firepower and survive increasingly difficult levels.

Galaxy Defense: Fortress TD
CYBERJOY LIMITED
Build turrets, upgrade skills, defend Earth
Build diverse turrets with unique skills and powers. Unlock and upgrade them to defend against enemies. Strategize turret placement based on enemy attributes. Refine strategies to enhance defense and combat effectiveness.

Galaxy Attack: Alien Invaders
Onegame Global Limited
Shoot aliens in space battles
Play as a space chicken shooter to defend Earth from . Shoot enemies in fast-paced action sequences. Unlock new weapons and power-ups. Track high scores and compete with others. Customize character appearance and upgrade abilities.


Star Blast!
Tim Gostony
Blast blocks and complete missions
Blast blocks to collect items and complete missions. Solve puzzles to save astronauts, fend off aliens, and collect space debris. Weather storms, destroy asteroids, activate satellites, thaw ice, and assist landers.

Galactic Missile Defense
Spyro Merianos
Defend Earth from alien invaders.
The app is a space-themed tower defense game. Players defend Earth using three bases and various weapon upgrades against alien invaders.

TerraGenesis - Space Settlers
Tilting Point LLC
Terraform planets with real science
Manage planetary ecosystems by adjusting temperature, atmosphere, and water levels. Track biosphere development and terraform planets using real NASA data. Complete missions to unlock new worlds and expand your interstellar empire.

Space Cadet Defender: Recon Invaders
SixHourSoft LLC
Battle through alien hordes and upgrade
Play a side-scrolling shooter against alien hordes. Upgrade your ship with new abilities. Navigate unique levels and defeat boss enemies. Collect powerups to boost performance. Compete for high scores through GameCenter.


Aliens Drive Me Crazy
Cezary Rajkowski
Blast through cities to reach alien base
Take control of a vehicle to navigate through a city and reach an alien base. Defeat enemies and bosses to unlock weapons, cars, and power-ups. Explore chaotic levels with simple controls and challenging gameplay.

Pocket Galaxy: Gravity Sandbox
Pocket Labs.
Create and simulate galaxies in 3D
Create and simulate custom galaxies with realistic physics. Place and customize planets, stars, and other celestial bodies. Adjust orbital paths and gravitational forces. Explore 3D space and test planetary interactions.




Atlantis Invaders
Spirit Bomb Company Limited
Defend Earth with submarine attacks
Control submarines to battle alien monsters in underwater environments. Shoot enemies with weapons, dodge attacks, and collect technology from to upgrade ships. Explore ocean depths to uncover secrets and navigate through diverse sea regions.

Space Adventure
Aleksejs Voloviks
Defend the galaxy from alien invaders.
The app is a strategic game where users defend the space warship Storm-1 from alien invaders. Users build towers, complete missions on different planets, and upgrade weapons to save humanity.

Arcadium - Space Shooter
Luciano Bercini
Fight enemies, collect power-ups, blast through waves
Play as a customizable spaceship to defend Earth from alien invasions. Shoot waves of enemies, collect power-ups, and upgrade weapons. Unlock new ships and abilities. Compete in infinite survival mode with increasing difficulty and epic boss battles.

Galaxiga: Classic Arcade Game
FALCON GAMES PTE. LTD.
Defend galaxy, upgrade ships, conquer waves
Play to defend the galaxy against alien waves. Upgrade starships, unlock new weapons, and command battles. Track progress through levels and achievements. Compete in high-score leaderboards. Share scores and invite friends to play.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.