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Best Star Battle Defense Apps & Games

179+ iOS apps & games curated and reviewed

4.6 avg rating
20 free apps & games
Updated May 2026

The best star battle defense apps on iPhone average 4.6โ˜… across 179+ titles โ€” we've ranked them by what real users actually keep on their phones. Updated May 2026.

Top Picks for Star Battle Defense

Galaxy Defense: Fortress TD#1

Galaxy Defense: Fortress TD by CYBERJOY LIMITED

Defend Planet, Beat Aliens!
Editor's Choice
๐ŸŽฎ Games
4.7๐Ÿ˜ž(311 ratings)
FreeAdsIn-App Purchases
#60in Games
Galaxy Defense: Fortress TD screenshot 1
Galaxy Defense: Fortress TD screenshot 2
Galaxy Defense: Fortress TD screenshot 3
Galaxy Defense: Fortress TD screenshot 4
Galaxy Defense: Fortress TD screenshot 5
Galaxy Defense: Fortress TD screenshot 6

In this thrilling tower defense game, you are the commander of a fortress tasked with defending Earth from alien invaders. Strategically build and upgrade a variety of turrets, equip your character with powerful weapons, and team up with global players to resist the alien attacks and protect our planet.

What We Love

  • ๐ŸŽฎ Addictive gameplay
  • ๐ŸŽจ Vibrant visuals
  • ๐Ÿ•น๏ธ Engaging tower defense mechanics

Room to Improve

  • ๐Ÿ’ฐ Monetization issues
  • ๐Ÿคฏ Difficulty spikes
  • ๐Ÿ•ฐ๏ธ Slow progression without spending
SpaceXYZ: Idle Tower Defense#2

SpaceXYZ: Idle Tower Defense by SuperMagic

Strategic Defense Game!
Strong Contender
๐ŸŽฎ Games
4.8๐Ÿ˜Š(1.7K ratings)
FreeAdsIn-App Purchases
SpaceXYZ: Idle Tower Defense screenshot 1
SpaceXYZ: Idle Tower Defense screenshot 2
SpaceXYZ: Idle Tower Defense screenshot 3
SpaceXYZ: Idle Tower Defense screenshot 4
SpaceXYZ: Idle Tower Defense screenshot 5

In this real-time strategy defense game, build and defend your base against relentless waves of enemies by deploying units, gathering resources, and upgrading your forces. With simple controls and in-depth strategy, test your skills and see how long you can survive in an epic battle for survival.

What We Love

  • ๐Ÿ‘ Fun gameplay
  • ๐Ÿš€ Good progression
  • ๐Ÿ’ก Innovative features
  • ๐Ÿ‘ No forced ads

Room to Improve

  • ๐Ÿ› Progress loss issues
  • ๐Ÿ› Crashing problems
  • ๐Ÿ’ฐ Expensive to remove ads
Space Takeover - Defense.io#3

Space Takeover - Defense.io by LIAO WENYAO

Conquer over city Games 3D
Worth Considering
๐ŸŽฎ Games
4.8๐Ÿ˜ž(4.8K ratings)
FreeAdsIn-App Purchases
Space Takeover - Defense.io screenshot 1
Space Takeover - Defense.io screenshot 2
Space Takeover - Defense.io screenshot 3
Space Takeover - Defense.io screenshot 4
Space Takeover - Defense.io screenshot 5
Space Takeover - Defense.io screenshot 6

Embark on an adventurous competitive mobile game where you compete to conquer planets by drawing lines between them. Experience multi-level challenges, fantasy props, and strategic gameplay for a thrilling gaming experience! Conquer planets and become the master of risk strategy in this captivating game.

What We Love

  • ๐Ÿš€ Fun gameplay
  • ๐Ÿš€ Engaging strategy
  • ๐Ÿ‘ Enjoyable for casual players

Room to Improve

  • ๐Ÿ’ฐ Aggressive monetization
  • ๐Ÿ”‹ Battery draining
  • ๐Ÿ› Bugs and glitches

More Star Battle Defense apps to explore

4
Radiant Defense
Radiant Defense
Radiant Defense
MILLIONS OF ALIENS WILL DIE
Free

In a vibrant universe overrun by alien hordes, Radiant Defense lets you build your space fortress, customize weapons and traps, and defend against waves of enemies. With over 300 waves in 14 missions, 9 upgradable weapons, and online rankings, strategically protect your territory in this intense defense game. Join the battle now!

๐ŸŽฎ Games
(134)
5
Pixel Starships 2
Pixel Starships 2
Pixel Starships 2
New Scifi Space Strategy Game
Free
$9.99 | 100% OFF

Pixel Starships 2 is a captivating space strategy game that lets you build, customize, and command your own starship. Immerse yourself in a vast, procedurally generated galaxy, engage in thrilling real-time battles, explore uncharted territories, and collaborate with other players to form alliances. With its stunning pixel art, regular updates, and engaging gameplay, Pixel Starships 2 offers an unparalleled gaming experience for both casual and hardcore fans of the genre.

๐ŸŽฎ Games
(781)
6
Boom Beach: War Strategy Game
Boom Beach: War Strategy Game
Boom Beach: War Strategy Game
Epic RTS Base-Building Battles
Free

In this epic combat strategy game, players must build their bases, plan attacks, and battle the evil Blackguard to free enslaved islanders. Join forces with players worldwide to create a Task Force and strategize together. Download now and experience the thrill of Boom Beach!

๐ŸŽฎ Games
(298K)
7
Battle for the Galaxy War Game
Battle for the Galaxy War Game
Battle for the Galaxy War Game
Best Real-Time Online Strategy
Free

Engage in epic real-time galactic warfare in this online strategy game. Build bases, command armies, and fight for victory in intense PvP battles. Join the battle now and dominate the galaxy!

๐ŸŽฎ Games
(417)
8
Astro Defenders : Capt.Couch
Astro Defenders : Capt.Couch
Astro Defenders : Capt.Couch
by playhard Inc.,
Free
๐ŸŽฎ Games
(66)
9
Clash Star: Castle Battle War
Clash Star: Castle Battle War
Clash Star: Castle Battle War
Tower defence game of empires
Free

This unique strategy game challenges you to win legendary duels by choosing troops and tactics to outmaneuver opponents in a battle of empires. With an idle simulation concept, you can play less and earn more, unlocking characters to help you dominate royal battles.

๐ŸŽฎ Games
(43)
10
Planet Overlord
Planet Overlord
Planet Overlord
by ๅผ˜่ต“ ไฟž
Free

"Experience an action-packed game where you launch missiles to defend Earth from aliens and conquer planets. Enjoy various weapons, interstellar civilizations, and planet residents in this free and addictive game. Download now to discover the secrets of the planets!"

๐ŸŽฎ Games
(821)
11
Cosmic Frontline AR
Cosmic Frontline AR
Cosmic Frontline AR
Lead epic galactic battles!
Free

Lead epic galactic battles in a visually stunning AR strategy game with Cosmic Frontline AR! Command massive spaceships, conquer planets, and engage in monumental battles. Experience space warfare like never before on your iPhone and iPad. Plan strategically, dominate opponents, and save the galaxy. Visit the official website for more information.

๐ŸŽฎ Games
(218)
12
Battlevoid: First Contact
Battlevoid: First Contact
Battlevoid: First Contact
by Bugbyte
Free
๐ŸŽฎ Games
(32)
13
AstroTor
AstroTor
AstroTor
Fight Aliens & Rise to Victory
Free

Defend planets from alien invasions in a fast-paced, arcade-style shooter where you'll face increasingly tough challenges and battle hordes of hostile extraterrestrials. Upgrade your arsenal and strategic abilities to defeat the alien OVERLORD and save the cosmos from destruction.

๐ŸŽฎ Games
(3)
14
Galaxy Attack: Alien Shooter
Galaxy Attack: Alien Shooter
Galaxy Attack: Alien Shooter
Classic Space War Invasion
Free

Protect Earth from alien swarms in a challenging space shooting game. Upgrade your spacecraft, face enemies in various environments, and engage in multiplayer mode. Download now for classic space combat!

๐ŸŽฎ Games
(649K)
15
The Battle Cats
The Battle Cats
The Battle Cats
Tower Defenseร—Battle Game
Free

Command an army of adorable yet powerful cats in a battle through space and time. Level up your feline warriors, collect treasures, and conquer enemies in this super simple tower defense and battle game! Join the fun and unleash the power of your Cat Army.

๐ŸŽฎ Games
(46K)
16
Strategy Star: Battle War Hero
Strategy Star: Battle War Hero
Strategy Star: Battle War Hero
Defense of castle tower empire
Free

Defend your castle from medieval warriors in this tower defense strategy game. Use arrows, collect coins to upgrade weapons, and battle evil bosses. Download for FREE and protect your castle empire today!

๐ŸŽฎ Games
(819)
17
Space Survivor - Star Pioneer
Space Survivor - Star Pioneer
Space Survivor - Star Pioneer
Build & Fight on Alien Star
Free

Explore the vast universe in an immersive space survival game where you must gather resources, build spacecraft, and brave unknown worlds to survive. Embark on your interstellar journey now and uncover the mysteries of the cosmos!

๐ŸŽฎ Games
(2.8K)
18
Clash of Clans
Clash of Clans
Clash of Clans
Base Building Strategy Battle
Free

Lead your clan to victory in epic Clan Wars with unique troops and strategic battles. Join forces, compete globally, and build your village into an unbeatable fortress. Join the action now!

๐ŸŽฎ Games
(2.8M)
19
Rush Royale: Tower Defense RPG
Rush Royale: Tower Defense RPG
Rush Royale: Tower Defense RPG
PvP Card battleใƒปMerge Strategy
Free

Embark on a strategic tower defense journey in a realm of magic and clans with an array of powerful units and heroes. Conquer opponents in PvP battles, join forces in Co-Op mode, explore different factions, and engage in events and quests for unique rewards. Experience Rush Royale, the ultimate TD game!

๐ŸŽฎ Games
(94K)
20
Sky Defense: War Duty
Sky Defense: War Duty
Sky Defense: War Duty
Epic aircraft attacking game
Free

Experience fast-paced, vertical arcade shooting in a thrilling alien invasion defense game. Defend your airspace with realistic visuals, intense battles, and simple controls. Download now and become the hero in SkyDefense!

๐ŸŽฎ Games
(11K)

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