Best Mothership Defense Apps & Games

151+ iOS apps & games curated and reviewed

4.5 avg rating
20 free apps & games
Updated May 2026

Mothership Defense is the household name in mothership defense, but it's far from the only option. We track 151+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Mothership Defense

Mothership Defense#1

Mothership Defense by Adknown

Editor's Choice
🎮 Games
3.8(37 ratings)
FreeAds
Mothership Defense screenshot 1
Mothership Defense screenshot 2
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Engage in a fast-paced arcade shooter defending against alien invaders and asteroids. Utilize shields as a weapon, dodge projectiles, and collect power-ups to survive.

Mothership Idle Tower Defense#2

Mothership Idle Tower Defense by Bern Games Inc.

Roguelike TD Space Battles!
Strong Contender
🎮 Games
4.8(4 ratings)
FreeAdsIn-App Purchases
Mothership Idle Tower Defense screenshot 1
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Mothership Idle Tower Defense screenshot 3
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Mothership Idle Tower Defense screenshot 6

Engage in a roguelike tower defense experience set in space. Collect unique upgrades and power-ups to customize your ships and advance through challenging enemy waves. Enjoy a minimalistic design with intuitive controls for a relaxing yet strategic gameplay session.

SpaceXYZ: Idle Tower Defense#3

SpaceXYZ: Idle Tower Defense by Supermagic Inc.

Strategic Defense Game!
Worth Considering
🎮 Games
4.8😊(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

Engage in real-time strategy to defend your base against relentless enemy waves. Build, upgrade, and deploy a variety of units with precise timing to survive epic battles in space. Master strategic decisions to overcome increasingly difficult challenges.

What We Love

  • 👍 Fun gameplay
  • 🚀 Good progression
  • 💡 Innovative features
  • 👍 No forced ads

Room to Improve

  • 🐛 Progress loss issues
  • 🐛 Crashing problems
  • 💰 Expensive to remove ads

More Mothership Defense apps to explore

4
Line Defense
Line Defense
Line Defense
by Legal Radiation Team
Free

Defend Earth from an alien invasion with fast-paced, retro-inspired arcade action. Utilize simple one-finger controls to deploy defenses, collect upgrades, and battle bosses across diverse maps. Enjoy challenging gameplay with a variety of modes and achievements.

One-finger swipe controlUnique power-ups and bossesCollect crystals for upgrades
🎮 Games
(14)
free with in-app purchases
5
Utopia: The Idle Tower Defense
Utopia: The Idle Tower Defense
Utopia: The Idle Tower Defense
idle tower defense
Free

Defeat waves of aliens to gain resources and power up your neon towers. This offline sci-fi tower defense game features incremental upgrades and automatic combat, even when you're not playing. Master alien invasion strategies to push deeper into the galaxy.

Offline idle tower defenseBuild and upgrade neon towersResearch skill trees
🎮 Games
(14)
free with in-app purchases
6
Radiant Defense
Radiant Defense
Radiant Defense
MILLIONS OF ALIENS WILL DIE
Free

Defend your space fortress against alien invasions in this vibrant defense game. Strategically build your base, deploy a variety of weapons and traps, and customize enemy paths to survive hundreds of waves. Compete for high scores in an online hall of fame.

Build custom enemy pathsOver 300 alien waves9 upgradable weapons
🎮 Games
(134)
free with in-app purchases
7
Ancient Planet Tower Defense
Ancient Planet Tower Defense
Ancient Planet Tower Defense
They're coming right for you!
Free

Defend an ancient stronghold from alien invaders using powerful technologies. Build and upgrade towers in a classic tower defense experience with unique levels and diverse enemies. Enjoy an offline, ad-free strategy game with a compelling storyline.

Classic Tower Defense gameplayBuild towers anywhere on the field40 unique levels
🎮 Games
(1.1K)
free with in-app purchases
8
Space Minions: Defense
Space Minions: Defense
Space Minions: Defense
Strategic base defense game
Free

Assemble a squad of unique Space Minions to defend your base against relentless enemy waves. Strategize unit placement and upgrade your team and defenses to overcome increasingly challenging levels in this tactical base defense game.

Assemble ultimate defense squadTactical unit positioningStrategize and build defenses
🎮 Games
(34)
free with in-app purchases
9
Galactic Dorm
Galactic Dorm
Galactic Dorm
Suvive in the alien invasion
Free

Build defenses and fight off alien monsters in your room. Tap to create structures and upgrade weapons to survive the invasion until darkness passes. Outlast the devil monsters to win.

Build defense systemsUpgrade weaponsFight alien monsters
🎮 Games
(37K)
free with in-app purchases
10
Galaxy Defense: Fortress TD
Galaxy Defense: Fortress TD
Galaxy Defense: Fortress TD
Defend Planet, Beat Aliens!
Free

Defend Earth from alien invaders in this idle tower defense game. Build diverse turrets, strategize your defense, and power up your character with unique skills and weapons. Collect resources and take on global challenges to protect the planet.

Build diverse turrets with unique skillsStrategize turret assembly based on enemy attributesPower up character with chips and weapons
🎮 Games
(8.9K)
free with in-app purchases
11
Sky Defense: War Duty
Sky Defense: War Duty
Sky Defense: War Duty
Epic aircraft attacking game
Free

Defend your airspace in an intense arcade shooter against an alien invasion. Engage in fast-paced, vertical ground-to-air combat with realistic visuals and a thrilling story. Perfect for quick bursts of action.

Fast-paced arcade shootingUnique vertical gameplayThrilling story mode
🎮 Games
(11K)
free with in-app purchases
12
Space War: Idle Tower Defense
Space War: Idle Tower Defense
Space War: Idle Tower Defense
Epic Adventure Idle RPG Arena
Free

Defend against waves of angry aliens in this adventure space game. Choose your ship, combine skill cards and bots, and strategically upgrade weapons to survive increasingly dangerous levels. Enjoy fast-paced, automatic gameplay perfect for on-the-go play.

Combine skill cards and botsChoose from 6+ unique shipsFace 100+ monsters simultaneously
🎮 Games
(12)
free with in-app purchases
13
Galaxy Defender: Tower Defense
Galaxy Defender: Tower Defense
Galaxy Defender: Tower Defense
Battle Against Evil Robots
Free

Defend your homeland from waves of evil robots by strategically deploying and upgrading a variety of powerful weapons. Explore diverse landscapes and adapt your tactics to overcome increasingly challenging robotic invaders in this exhilarating tower defense game.

Strategic weapon deploymentSix unique upgradable gunsDiverse and challenging landscapes
🎮 Games
(88)
free with in-app purchases
14
Foundation: Galactic Frontier
Foundation: Galactic Frontier
Foundation: Galactic Frontier
Forge Your Galactic Legacy
Free

Embark on an epic sci-fi adventure in a falling Galactic Empire. Command your starship, explore uncharted space, and dominate a saga blending deep strategy with intense action. Uncover secrets, build your fleet, and shape the future of humanity.

Interstellar trader/bounty hunter/political strategist roleCinematic narrative events reacting to player choicesMothership construction and customization
🎮 Games
(7K)
free with in-app purchases
15
Planet Defense: Space TD game
Planet Defense: Space TD game
Planet Defense: Space TD game
Galactic TD Strategy
Free

Defend your home planet in this roguelike tower defense game. Build and upgrade defenses to fend off alien invaders. Experience deep strategy with unique playthroughs and unlockable sentinels.

Roguelike progression with randomized upgradesStrategic depth with unlockable sentinelsStunning visuals and atmospheric sound
🎮 Games
(2.2K)
free with in-app purchases
16
ASTRONEST - The Beginning
ASTRONEST - The Beginning
ASTRONEST - The Beginning
by ANGames Co.,Ltd
Free

Engage in a massive space strategy MMO where you colonize planets, build powerful fleets, and battle players globally. Explore alien technologies, form alliances, and lead humanity's fight for survival in a galactic war.

Colonize planetsBuild epic space fleetsBattle players worldwide
🎮 Games
(540)
free with in-app purchases
17
Bunker Defense: 100M Survival
Bunker Defense: 100M Survival
Bunker Defense: 100M Survival
Survive endless enemy waves
Free

Defend your bunker against relentless waves of enemies in this thrilling strategy game. Deploy diverse units with unique skills, upgrade your forces in real-time, and prepare for epic boss battles. Your strategic decisions and unit combinations are key to survival and becoming a galactic legend.

Defend the bunker against enemy wavesDeploy diverse units with unique skillsReal-time unit enhancement and upgrades
🎮 Games
(183)
free with in-app purchases
18
Star Hunter-Infinite Lagrange
Star Hunter-Infinite Lagrange
Star Hunter-Infinite Lagrange
Rally the Fleet,Hunt the Stars
Free

Command your fleet in a post-war galaxy, taking on bounty contracts and exploring ruins for treasure and technology. Build your base, upgrade your ships, and engage in tactical space combat. The choice is yours: roam the void or rise from chaos.

Interstellar tactical extraction gameplayFleet command and controlBounty hunting and contract missions
🎮 Games
(7.4K)
free with in-app purchases
19
Space Outpost: Drone War
Space Outpost: Drone War
Space Outpost: Drone War
Epic Idle Tower Defense
Free

Defend your space outpost from relentless enemy waves in this idle tower defense game. Upgrade your warship, deploy powerful towers, and unlock advanced weapons to survive galactic battles. Conquer star systems and climb leaderboards in an immersive sci-fi experience.

Warship customizationTower defense combatGalactic campaign
🎮 Games
(23)
free with in-app purchases
20
Space Survivor - Star Pioneer
Space Survivor - Star Pioneer
Space Survivor - Star Pioneer
Build & Fight on Alien Star
Free

Embark on an interstellar adventure to defend humanity from an alien invasion. Build and expand your base, develop powerful fighter jets and mechs, and engage in strategic combat to reclaim planets and ultimately defeat the enemy. Experience a visually rich 3D world with smooth gameplay.

Base building and expansionDevelop fighter jetsCombat mecha development
🎮 Games
(2.8K)
free with in-app purchases