Comparison

Galaxy Invaders vs Retro Galactic Siege

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

Head to head
About

Galaxy Invaders

Engage in an ultimate space shooting game with classic arcade style and modern expression. Explore galaxies, battle alien invaders with advanced weaponry, and collect powerful spaceships and drones. Enjoy offline play and compete with others globally.

Highlights
  • Classic arcade space shooting gameplay
  • Multiplayer modes (1v1, 1v3, 2v2, survival)
  • PVP online and co-op missions
  • Variety of enemies and challenging bosses
  • Collect 15 spaceships and 12 drones
  • Unlock legendary ships with superpowers
  • Offline playable
Features
Read full description

Galaxy Invaders Space Attack is the ultimate space shooting game that has stormed on iOS. With millions of downloads and rave reviews, it's no wonder this game is at the top of the charts. If you are one of the big fans of those classic galaxy shooting game series like galaga pixel shooter, galaxia, galaxian, galactica, space shooter, shoot 'em up, space invaders, galaxiga, Air Strike Force and Chicken Shooter, then Galaxy Invaders Space Shooter is definitely your best choice because it is perfect for you. The classic game style, but the new way of expression will fascinate you while you play. Galaxy Invaders Space Shooter will bring you new enemies and bosses in the Galaxy War. Do you think you have enough skills to survive this epic battle with these alien invaders? Explore the depths of space, taking on missions and challenges across different planets in the galaxy. Each level presents increasingly difficult challenges, with advanced weaponry and intelligent adversary AI, making the gameplay both engaging and challenging. Galaxy Invaders Space Shooter is not your average run-of-the-mill shooting game. It offers a fantastic storyline with stunning graphics, dramatic intergalactic settings, and a spine-chilling soundtrack that keeps you fully immersed in the game. Earn points and rewards as you progress through the game, which can be used to unlock new weapons, upgrades, and power-ups. With smooth and intuitive controls, Galaxy Invaders Space Shooter is easy to play but difficult to master, making it both accessible for newbies and challenging for seasoned players. Features: + Multiplayer mode: 1 vs 1, 1 vs 3, 2vs 2, survival. + Compete with other players in PVP online shooting games or co-op with friends to complete missions and earn rewards. With the chance to mark your name on the global leaderboard, it’s a perfect opportunity to show off your skills. + Featuring a variety of enemies and challenging bosses, each level offers a unique space battle experience. + With 15 spaceships and 12 drones to collect, you can build up a formidable fleet, with each ship and drone offering unique skills and playstyles. Unlock legendary space shooter ships to gain superpowers and add them to your collection. + One of the most exciting space action shooting games. + Various enemies and bosses fighting. + True space battle experience. + Unlock legendary space shooter ships to get a superpower in your aircraft collection. + Galaxy Invaders Space Shooter is fully playable offline so you can enjoy playing without internet connection requirements. + It’s the perfect arcade shooter games Galaxy Invaders Space Shooter - galaxy attack offline games for free. How to play : + Choose your spaceship: Select one of the 15 spaceships with unique abilities and skills. + Equip your ship: Choose from a range of weapons, shields, engines, and special bonus upgrades to make your spaceship the ultimate killing machine. + Shoot and destroy: Navigate through different galaxies and destroy waves of alien enemies, including challenging bosses. Use your powerful weapons and shields to stay alive. + Collect drones: Collect 12 drones, each with unique abilities, and use them to aid you in your battles. + Upgrade your ship: Gain points and rewards as you complete levels and use them to upgrade your weapons and spaceships or unlock legendary spaceships. + Play multiplayer: Compete with other players in PVP online shooting games, co-op with friends, and climb the global leaderboard to show off your skills. + Play offline: Play without requiring an internet connection - perfect for when you don’t have access to wifi. + Action, Shooter, Bulletstorm, Casual, Single player, Stylized, Offline Join the millions of players worldwide who have already downloaded this addictive and exciting intergalactic shooter game. It's time to take on the alien invaders and show them who's boss!

About

Retro Galactic Siege

Features
Read full description

THE GALAXY IS UNDER SIEGE. ONLY YOU CAN STOP THEM. Galactic Siege is a pulse-pounding arcade shooter that reinvents the classic invader formula with 12 unique galaxies, 5 epic bosses, 11 power-ups, and cinematic boss intros. Built for iPhone, iPad, and Mac. BASE GAME FREE 12 GALAXIES Each with its own visual identity: nebula patterns, star colors, and atmospheric lighting. From the warm blues of the Milky Way to the pulsing magentas of Omega Centauri. 3 LEGENDARY BOSSES - The Guardian A swept-wing interceptor with twin cannons and a glowing cockpit visor. - Void Emperor A claw-shaped destroyer with dual reactor eyes and blade-wing extensions. - Omega Mothership The Starcrusher Class. 8 thruster engines, 4 animated launch bays, and twin weapon pylons. The most imposing boss in the known universe. 8 POWER-UPS Scatter Shot, Plasma Laser, H-Bomb, Rapid Fire, Force Shield (blocks 3 hits), Black Hole, Time Slow, and Extra Life. Each with unique visuals and sound effects. COMBO SYSTEM Chain kills for bonus points. 5+ kills triggers a multiplier. REVIVE SYSTEM When you fall, a 9-second countdown lets you revive and continue exactly where you were with a triple shield activated. TOUCH OPTIMIZED Precision controls built for iPhone. No drift, no stuck buttons. DARK DIMENSION EXPANSION 6 NEW GALAXIES Enter the void. Black and violet galaxies with animated dark tendrils and corrupted enemy designs. 3 NEW POWER-UPS - OVERDRIVE Double speed for 20 seconds. - NUKE One button. Every enemy on screen: gone. - CLONE Deploy two ghost ships that follow and fire alongside you. VOID STALKER BOSS A cloaking predator with a pulsing eye cluster, dark energy tendrils, and a side-mounted void cannon. COMMANDER PASS All current and future expansions. One-time purchase. No subscriptions, ever. NO DARK PATTERNS No energy timers. No forced ads. No pay-to-win. The base game is complete and fully enjoyable on its own. Ready to siege the galaxy, Commander?

Screenshots

Galaxy Invaders4 screens
Retro Galactic Siege3 screens

Verdict

The call

The clearest difference is ads: Retro Galactic Siege at none against Galaxy Invaders's shown. Galaxy Invaders's advantage is update cadence (every 2 weeks vs every 2 months). On price, in-app purchases, device support and iOS requirement 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. Galaxy Invaders sells 27 one-off in-app purchases and Retro Galactic Siege sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Galaxy Invaders ships an update every 2 weeks, Retro Galactic Siege every 2 months. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 8 level
Galaxy Invaders versus Retro Galactic Siege: the parameters behind the verdict, then further details
ParameterGalaxy InvadersRetro Galactic Siege
PriceFreeFree
Rating4.2 (56 ratings) — better—
Positive reviews47.4% of reviews—
Number of ratings56 — better—
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size169 MB11 MB
Age rating9+4+
DeveloperPUMPKIN VN CO., LTDABRAHAM SEGOVIANO

In-app purchases

27 purchases

Galaxy Invaders

One-time27
  • SHIP PART 1$0.99
  • Crystal 1$1.99
  • Revive Crystal$1.99
Show 24 more
  • SHIP PART 2$1.99
  • Powerball Ticket 1$1.99
  • Boosters Pack$2.99
  • Gold Pack$2.99
  • PIGGY BANK 1$2.99
  • Starter Pack$2.99
  • Reflex and Swarm Pack$2.99
  • SHIP PART 4$3.99
  • Crystal 2$4.99
  • Subscription Basic$4.99
  • WING 5$4.99
  • SMALL EVENT PACK$4.99
  • PIGGY BANK 2$4.99
  • SKIN 5$4.99
  • Weapon Variant 5$4.99
  • PIGGY BANK 3$8.99
  • Reinforcement Pack$8.99
  • Powerball Ticket 3$9.99
  • Crystal 3$9.99
  • BIG EVENT PACK$17.99
  • Subscription Elite$17.99
  • SALE 50% OFF$17.99
  • Crystal 4$19.99
  • Crystal 5$42.99
5 purchases

Retro Galactic Siege

One-time5
  • Warhawk Ship$0.99
  • Xeno Drone ship$0.99
  • Neon Blade Ship$0.99
Show 2 more
  • Phantom Ship$0.99
  • Dark Dimension Expansion$1.99

Questions

Is Galaxy Invaders free?
Galaxy Invaders is free to download, with in-app purchases available.
Is Retro Galactic Siege free?
Retro Galactic Siege is free to download, with in-app purchases available.
Do Galaxy Invaders or Retro Galactic Siege have ads?
Galaxy Invaders shows ads; Retro Galactic Siege does not.
Which is updated more often, Galaxy Invaders or Retro Galactic Siege?
Galaxy Invaders ships an update every 2 weeks, and Retro Galactic Siege every 2 months. Most recently, Galaxy Invaders was updated on October 14, 2026 and Retro Galactic Siege on October 9, 2026.

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