Comparison

Atlantis Invaders vs Space Defenders

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Atlantis Invaders

Dive into an underwater arcade shooter where you defend the sunken kingdom of Atlantis from mechanical invaders. Experience intense bullet-hell action, upgrade your submarine fleet, and battle colossal bosses in a stunning deep-sea environment. Play anytime, anywhere with 100% offline action.

Highlights
  • Deep-sea arcade shooter gameplay
  • Bullet-hell projectile dodging
  • Fleet building and submarine upgrades
  • Tactical drone support
  • Epic boss battles
  • Stunning underwater environments
  • 100% offline play
Features
Read full description

The war isn't in the stars anymore - it’s in the abyss. Dive into the ultimate deep-sea arcade shooter! Welcome to Atlantis Invaders, the next evolution of the classic Shoot 'em up. We invite you to explore the treacherous abyss, where the sunken kingdom of Atlantis is under siege by mechanical invaders. You are its last line of defense. Experience the evolution of bullet-hell. Dodge thousands of glowing projectiles, navigate through ancient ruins, and master fast-paced action. Built for precision, the game offers the perfect balance between simple, accessible gameplay and true bullet-hell mastery. Why you should join the battle: STUNNING UNDERWATER WORLD Fight through vibrant trenches and glowing reefs. Every stage is a new challenge, designed to pull you deeper into the mysteries of the deep. UNSTOPPABLE FLEET PROGRESSION - Build your fleet: Command legendary submarines. Unlock a diverse range of vessels, from agile scouts to elite SSR battleships. - Evolve and dominate: Collect shards to upgrade your ships. Watch your power skyrocket as you unlock devastating firepower and screen-clearing ultimate abilities. - Drone support: Equip tactical drones to provide cover fire, allowing you to min-max your combat build for any mission. EPIC BOSS FIGHTS Face off against terrifying, screen-filling titans. Test your reflexes and upgrades in these ultimate showdowns. Can you survive their relentless bullet patterns? 100% OFFLINE ACTION No Wi-Fi? No problem! The battle for the ocean never stops. Enjoy a premium, lag-free arcade experience anytime, anywhere - perfect for anyone. The abyss is calling. Will you answer? Atlantis doesn't need just a pilot - It needs a legend. Gear up, submerge, and unleash hell upon the monsters threatening the deep. Download Atlantis Invaders today and lead your fleet to victory! Visit us: https://www.facebook.com/AtlantisInvaders/ Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Space Defenders

Features
Read full description

Make your way fighting enemy alien ships, in order to defend your home! Power up and try to beat your own score!

Screenshots

Atlantis Invaders4 screens
Space Defenders3 screens

Verdict

The call

The clearest difference is in-app purchases: Space Defenders at none against Atlantis Invaders's 10. Space Defenders also leads on iOS requirement (12.0 vs 15.0). Atlantis Invaders's advantage is update cadence (fortnightly vs monthly). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Atlantis Invaders sells 10 one-off in-app purchases. Space Defenders asks for nothing beyond the download.

UpkeepUpdate frequency

Atlantis Invaders ships an update fortnightly, Space Defenders monthly. The most recent releases landed on November 7, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 7 level
Atlantis Invaders versus Space Defenders: the parameters behind the verdict, then further details
ParameterAtlantis InvadersSpace Defenders
PriceFreeFree
Rating4.7 (2.8K ratings) — better—
Positive reviews31.0% of reviews—
Number of ratings2.8K — better—
Update frequencyFortnightly — betterMonthly
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size424 MB70 MB
Age rating12+9+
DeveloperSpirit BombRodwel Polanco Martinez

Bugs and requests

Atlantis Invaders

Reported bugs

3 issues
  • Game crashes on launch
  • Progress not saving properly
  • Connectivity issues

Requested features

3 requests
  • More level updates
  • Improved save/load system
  • Reduced advertising

Space Defenders

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Atlantis Invaders

One-time10
  • Fortune Tree 1$0.99
  • Piggy Bank 1$1.99
  • Chapter Pack 4$2.99
Show 7 more
  • 240 Diamonds Pack$4.99
  • Piggy Bank 2$4.99
  • Veteran Pass 1$4.99
  • Premium Card$4.99
  • Fortune Tree 3$4.99
  • Veteran Pass 2$13.99
  • Super Premium Card$19.99
None

Space Defenders

No in-app purchases

Questions

Is Atlantis Invaders free?
Atlantis Invaders is free to download, with in-app purchases available.
Is Space Defenders free?
Space Defenders is free to download, with no in-app purchases.
Do Atlantis Invaders or Space Defenders have ads?
Both Atlantis Invaders and Space Defenders show ads.
Which is updated more often, Atlantis Invaders or Space Defenders?
Atlantis Invaders ships an update fortnightly, and Space Defenders monthly. Most recently, Atlantis Invaders was updated on November 7, 2026 and Space Defenders on October 27, 2026.

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