Invaders Retro vs Retro Galactic Siege
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Invaders Retro
Defend Earth from relentless alien waves in this retro-inspired shooter. Discover hidden scoring mechanics as you battle through increasingly challenging levels to save the planet.
- Alien invasion gameplay
- Wave-based challenges
- Hidden scoring system
- Retro graphics
- Planet defense
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Climb the ranks and save the planet from the alien invasion. Waves and waves of aliens, when will it end ? Find hidden scoring as you play.
Retro Galactic Siege
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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
Verdict
The clearest difference is price: Retro Galactic Siege at Free against Invaders Retro's $0.99. Invaders Retro's advantage is in-app purchases (none vs 5) and update cadence (weekly vs every 2 months). On ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Retro Galactic Siege is free to download; Invaders Retro costs $0.99 up front. Retro Galactic Siege sells 5 one-off in-app purchases. Invaders Retro asks for nothing beyond the download.
Invaders Retro ships an update weekly, Retro Galactic Siege every 2 months. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.
| Parameter | Invaders Retro | Retro Galactic Siege |
|---|---|---|
| Price | $0.99 | Free โ better |
| Positive reviews | 100.0% of reviews | โ |
| Update frequency | Weekly โ better | Every 2 months |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Monetization | Paid | โ |
| Devices | iPhone, iPad, iPod, Mac โ better | iPhone, iPad, iPod |
| Requires iOS | 14.2 โ better | 15.6 |
| Further details โ not scored | ||
| Size | 3 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Justin Ngan | ABRAHAM SEGOVIANO |
In-app purchases
Invaders Retro
No in-app purchases
Retro Galactic Siege
- Warhawk Ship$0.99
- Xeno Drone ship$0.99
- Neon Blade Ship$0.99
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- Phantom Ship$0.99
- Dark Dimension Expansion$1.99
Questions
Is Invaders Retro free?
Is Retro Galactic Siege free?
Do Invaders Retro or Retro Galactic Siege have ads?
Which is updated more often, Invaders Retro or Retro Galactic Siege?
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