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Best Defender Space Apps & Games

222+ iOS apps & games curated and reviewed

4.1 avg rating
18 free apps & games
Updated September 2026

Out of 222+ defender space apps and games on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Defender Space Apps & Games (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Space Cadet Defender HD: InvadersSpace Cadet Defender HD: InvadersFree4.4★ (454)NoYesJul 2026
2Space: Defender XtremeSpace: Defender XtremeFree5.0★ (3)NoNoMay 2026
3Gunner : Space Defender (Lite)Gunner : Space Defender (Lite)Free3.9★ (10)YesNoAug 2026
4Space Force: Galaxy DefendersSpace Force: Galaxy DefendersFree4.6★ (5)YesYesAug 2026
5Space Cadet DefenderSpace Cadet DefenderFree4.1★ (23)NoYesMay 2026
6Space Cadet Defender: Recon InvadersSpace Cadet Defender: Recon InvadersFree4.5★ (226)NoYesJul 2026
7Space Defender 3DSpace Defender 3DFree—NoYesMay 2026
8Space Defenders: ArcadeSpace Defenders: ArcadeFree—YesNoMay 2026

Top Picks for Defender Space

Space Cadet Defender HD: Invaders#1

Space Cadet Defender HD: Invaders by SixHourSoft LLC

Editor's Choice
🎮 Games
4.4😊(454 ratings)
FreeIn-App Purchases
Space Cadet Defender HD: Invaders screenshot 1
Space Cadet Defender HD: Invaders screenshot 2
Space Cadet Defender HD: Invaders screenshot 3
Space Cadet Defender HD: Invaders screenshot 4
Space Cadet Defender HD: Invaders screenshot 5

Defend Earth from an alien invasion in this fast-paced arcade space shooter. Upgrade your ship with powerful enhancements and conquer over 150 unique levels, including challenging boss battles. Compete for high scores and save your progress.

What We Love

  • ⭐ Excellent game
  • 🕹️ Fun and challenging gameplay
  • 🕹️ Nostalgic old-school feel
  • 🕹️ Addictive and engaging
  • 💰 Good value for free game
  • 🎨 Great graphics and visuals

Room to Improve

  • 💰 Difficulty requires paid upgrades to progress
  • 🛠️ Controls can be sluggish or unresponsive
  • 🔁 Repetitive level design
  • 🔁 Lack of level variety after a certain point
  • 🐛 Occasional crashes or bugs
Space: Defender Xtreme#2

Space: Defender Xtreme by Scratchmark Ltd

Defend the Earth
Strong Contender
🎮 Games
5.0(3 ratings)
Free
Space: Defender Xtreme screenshot 1
Space: Defender Xtreme screenshot 2
Space: Defender Xtreme screenshot 3
Space: Defender Xtreme screenshot 4
Space: Defender Xtreme screenshot 5
Space: Defender Xtreme screenshot 6

Defend Earth in this retro arcade space shooter against relentless alien invaders. Pilot unique spacecraft, utilize various weapons, and collect power-ups to survive increasingly difficult waves and boss battles. Compete on global leaderboards for the highest score.

Gunner : Space Defender (Lite)#3

Gunner : Space Defender (Lite) by Peter Sokolov

First person space shooter 3d
Worth Considering
🎮 Games
3.9(10 ratings)
FreeAds
Gunner : Space Defender (Lite) screenshot 1
Gunner : Space Defender (Lite) screenshot 2
Gunner : Space Defender (Lite) screenshot 3
Gunner : Space Defender (Lite) screenshot 4
Gunner : Space Defender (Lite) screenshot 5
Gunner : Space Defender (Lite) screenshot 6

Engage in a first-person 3D space shooter where you control a turret to defend friendly objects and destroy enemies. Utilize a variety of primary and secondary weapons across campaign and survival modes. Compete with friends via Game Center and back up your progress with iCloud.

More Defender Space apps to explore

FAQ about Defender Space

What are the best defender space apps & games for iPhone?
Space Cadet Defender HD: Invaders tops our defender space apps & games ranking as of September 2026, with a 4.4-star average from 454 App Store ratings, and it's free to download.
Yes — 18 of the top defender space apps & games we rank are free to download, including Space Cadet Defender HD: Invaders and Space: Defender Xtreme.
Space Cadet Defender HD: Invaders has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 222+ defender space apps & games on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Space Cadet Defender HD is an arcade-style action game where you defend Earth from an alien invasion. It features fast-paced gameplay, over 150 levels, and the ability to upgrade your ship.
Key features include high-definition retina graphics, over 150 unique levels, ship upgrades, challenging boss levels with alien overlords, unique powerups, GameCenter integration for high scores, and the ability to save and restore game progress.