Apps Like Space Tower Defender for iPhone and iPad
Defend planets with weapons
Command an orbital defense platform to defend planets against waves of alien invaders. Build and upgrade weapons like pulse lasers and photon bolts. Each invader has unique behavior, requiring strategic weapon combinations to complete missions.
Space Tower Defender screenshots
Ranked alternatives
Showing 281–300 of 1,000 ranked alternatives.


Space Borders: Alien Encounter
Amasis Brauch
Command fleets and battle forces
Command and manage a fleet of star ships in real-time strategy combat. Build and upgrade ships with unique abilities. Harvest resources to expand your military. Defend Earth from invaders through tactical battles and strategic planning.

Kaiju Attack 2
GUAN LING WU
Commander, lead your forces to victory
Commanders lead alien forces and defend Earth against a returning threat. Manage resources, deploy units, and upgrade defenses. Unlock new abilities and strategies. Track progress through multiple story chapters and side missions.

Egg Commando
BRILLIANT GAMES PRIVATE LTD.
Survive, fight, and escape
Survive waves by using weapons like flame throwers and rocket launchers. Customize gameplay with one-handed or crazy modes. Collect items and upgrade weapons. Run fast to avoid enemies. Complete levels to progress and survive longer.

Alien War Spaceship Shooter
FALCON GAMES PTE. LTD.
Shoot aliens, survive waves, upgrade ship
Play a bullet hell game featuring increasing numbers of aliens and epic bosses. Upgrade spaceships for enhanced combat abilities. Save the galaxy by completing challenging missions and progressing through levels.

Dream Adventure Game
Vung TONG
Explore alien planets and ecosystems
Explore endless levels as Jack, a scientist in a , travels to alien planets. Fight creatures in five ecosystems: jungle, gem, ice, desert, and lava. Collect gems to upgrade the robot's abilities.

Galaxy Combat: Space shooter
Le Nhung
Fight enemies and defend the
Play as a captain defending the against intruders. Shoot enemies in fast-paced combat. Upgrade weapons and unlock new ships. Complete missions to earn rewards and progress through levels. Track achievements and compete with other players.

Chaos Lords: War Strategy Game
SUPERDIGITALPILL LTD
Explore worlds, battle, conquer
Build and defend your kingdom by constructing castles, training troops, and managing resources. Participate in PvE and PvP battles. Explore the magical world of Tartesia, complete quests, and upgrade your realm with unique abilities and units.







Space Age: A Cosmic Adventure
Matt Comi
Explore planets and uncover secrets
Explore a retro-futuristic sci-fi world with pixel art visuals. Navigate a planet with unique environments and alien creatures. Complete quests, collect resources, and upgrade equipment.

Barrel Defender - Galaxy
Stefan Preuss
Protect barrels, blast waves of aliens.
The app is a retro arcade shooter where players protect energy barrels and blast aliens. It features two game modes, 25 waves, various aliens, boss enemies, and weapon power-ups.


Super Pixelander
Sunny Tam
Dodge asteroids and collect gems
Play a top-down space shooter where the goal is to collect gems while avoiding asteroids, alien attacks, and molten lava. Dodge obstacles, shoot blasters, and repeat levels for high scores. Control with simple taps but face increasing difficulty.

Protect The Tree
MoonBear LTD
Defend the with towers and troops
Defend the last by placing and upgrading towers to block enemies. Manage and deploy an army to attack enemies. Build and upgrade units, strategize attacks, and control battlefield movements.

Astro War Space Soldier Free
Xiangning Xu
Defend the space mining colony now.
The app features 3D space environments and a variety of weapons and pickups. Players must defend a space mining colony from an attacking rival corporation.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.