Comparison

Retro Grid vs Alien Swarm 3

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

Head to head
About

Retro Grid

Experience a fast-paced, endless arcade space shooter with nostalgic 80s graphics and modern one-touch controls. Shoot invaders, dodge enemy fire, and aim for high scores in this retro-inspired galactic adventure.

Highlights
  • Endless gameplay
  • Retro graphics
  • One-touch controls
  • Power-ups & Boosts
  • High Scores & Achievements
Features
Read full description

Retro Grid is a fast paced retro space shooter inspired from 80's arcade games. It’s an endless arcade game with nostalgic graphic style and modern gameplay. Shoot the invaders, avoid getting hit and travel as far as you can. Master the one-touch controls and fight your way through enemies deep in the galaxy. Features: Simple controls, easy to play Endless gameplay Retro graphics Spaceships Power-ups & Boosts High Scores & Achievements

About

Alien Swarm 3

Features
Read full description

If you are a fan of arcade games then you will have already played lots of great space arcade games, well now you can take it to the next level with Alien Swarm 3D. The aliens are invading again, swarming around in dazzling attack patterns. You're task is simple, blow'em all to bits! Can you defeat wave after wave of dazzling alien invaders to save the galaxy. Blast the invaders as they spin and whirl through space in this old school arcade invader game. After 4 fantastic waves you'll get a bonus round, score lots of points to insure you get that next free life. Your ship is equipped with a mega powered blaster, you have unlimited fire power ... unfortunately they do as well! From the golden era of video games we bring this retro arcade game firmly into the 21st century. Its Free so download it now and help defend the galaxy from this band of invading aliens know as Alien Swarm 3D. To control your space ship, pop into the settings screen and choose from tilt action or on screen buttons. Stay calm, don't panic, keep your hair on and you may just survive. Another fabulous shoot'em up from our retro arcade game series.

Screenshots

Retro Grid4 screens
Alien Swarm 34 screens

Verdict

The call

The clearest difference is in-app purchases: Alien Swarm 3 at none against Retro Grid's 3. Retro Grid's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 23 months). On price 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. Retro Grid sells 3 one-off in-app purchases. Alien Swarm 3 asks for nothing beyond the download.

UpkeepUpdate frequency

Retro Grid ships an update every 3 weeks, Alien Swarm 3 every 23 months. The most recent releases landed on September 25, 2026 and October 18, 2026 respectively.

Scorecard4 real differences · 6 level
Retro Grid versus Alien Swarm 3: the parameters behind the verdict, then further details
ParameterRetro GridAlien Swarm 3
PriceFreeFree
Rating3.5 (34 ratings) — better—
Positive reviews26.2% of reviews—
Number of ratings34 — better—
Update frequencyEvery 3 weeks — betterEvery 23 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better13.0
Further details — not scored
Size53 MB67 MB
Age rating4+9+
DeveloperGameguruGalatic Droids

In-app purchases

3 purchases

Retro Grid

One-time3
  • 1000 coins$1.99
  • 5000 coins$4.99
  • 10000 coins$6.99
None

Alien Swarm 3

No in-app purchases

Questions

Is Retro Grid free?
Retro Grid is free to download, with in-app purchases available.
Is Alien Swarm 3 free?
Alien Swarm 3 is free to download, with no in-app purchases.
Do Retro Grid or Alien Swarm 3 have ads?
Alien Swarm 3 shows ads; Retro Grid does not.
Which is updated more often, Retro Grid or Alien Swarm 3?
Retro Grid ships an update every 3 weeks, and Alien Swarm 3 every 23 months. Most recently, Retro Grid was updated on September 25, 2026 and Alien Swarm 3 on October 18, 2026.

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