Alpha GameBox vs Retro Invader Cosmic Shooter
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Alpha GameBox
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Alpha GameBox - Classic Collections of Fun Games
Retro Invader Cosmic Shooter
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THE INVASION HAS BEGUN. EARTH'S LAST DEFENSE IS YOU. Retro Invader Cosmic Shooter brings the legendary arcade experience to your fingertips. Pilot your starfighter against relentless waves of alien invaders in a neon-drenched battle for survival. Every wave hits harder. Every second counts. CLASSIC ARCADE COMBAT, REIMAGINED - Command your starfighter against 28 alien invaders per wave - Face 3 deadly alien species: Squids (40 pts), Crabs (30 pts), and Octopuses (20 pts) - Hunt the Mystery UFO for massive bonus points (100-300 pts) - Protect 4 destructible barrier shields from enemy fire - Authentic formation movement and attack patterns PURE PIXEL ART VISUALS - Hand-crafted pixel art sprites in a striking neon color palette - Glowing green, magenta, cyan, and yellow against the void of deep space - Satisfying particle explosions when you blast enemies to bits - Animated starfield background for cosmic atmosphere INTENSE WAVE-BASED PROGRESSION - Each new wave accelerates enemy speed by 15% - Alien formations march, descend, and fire with increasing aggression - Dynamic difficulty that rewards skilled pilots with higher scores - Procedurally generated mission briefings and combat reports DESIGNED FOR MOBILE - Responsive touch D-pad and fire button built for fast-paced combat - Haptic feedback on every shot, explosion, and game over - Portrait orientation for comfortable one-handed play - Quick 5-15 minute sessions perfect for commutes, breaks, or bedtime battles - Optimized 45 FPS game loop for smooth performance ZERO PAY-TO-WIN - No in-app purchases. No loot boxes. No pay walls. - Pure skill-based arcade action the way it was meant to be played Whether you grew up feeding quarters into arcade cabinets or discovering the thrill of classic shoot-em-ups for the first time, Retro Invader Cosmic Shooter delivers the tension, challenge, and satisfaction of the golden age of gaming -- right in your pocket. The aliens are descending. The barriers are crumbling. Your starfighter is armed and ready. LAUNCH YOUR MISSION NOW.
Screenshots
Verdict
The clearest difference is update cadence: Alpha GameBox at every 8 days against Retro Invader Cosmic Shooter's every 7 months. Alpha GameBox also leads on iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Alpha GameBox ships an update every 8 days, Retro Invader Cosmic Shooter every 7 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.
| Parameter | Alpha GameBox | Retro Invader Cosmic Shooter |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 days โ better | Every 7 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 12.0 โ better | 15.1 |
| Further details โ not scored | ||
| Size | 26 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Meks Group, LLC | Masaki Kenneth Micheal Akita |
In-app purchases
Alpha GameBox
No in-app purchases
Retro Invader Cosmic Shooter
No in-app purchases
Questions
Is Alpha GameBox free?
Is Retro Invader Cosmic Shooter free?
Do Alpha GameBox or Retro Invader Cosmic Shooter have ads?
Which is updated more often, Alpha GameBox or Retro Invader Cosmic Shooter?
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