Comparison

Alien Raid vs Train Defense

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

Head to head
About

Alien Raid

Lead an alien invasion to conquer Earth by building and evolving a monster army. Raid human bases, gather resources, and upgrade your lab and creatures for ultimate domination in this sci-fi strategy game.

Highlights
  • Create and upgrade monsters
  • Tower defense meets alien strategy
  • Upgrade lab and workers
  • Arcade action and idle gameplay
  • Conquer iconic locations
  • Epic boss battles
Features
Read full description

Embark on an exhilarating journey where aliens, monsters, and evolution collide in Alien Raid: Monster Evolution! Your mission is clear: raid Earth, gather resources, and dominate the human world. Capture people, grow your monster army, and use your strategy to destroy human military bases and fortresses. The alien invasion has begun! Fly your UFO across space, collect humans, and upgrade your lab to create powerful monsters. Use DNA as your main resource to hire workers, enhance your lab, and build an unstoppable army. Take on waves of human defenses and emerge victorious in every battle. Key Features - Create and Upgrade Monsters: Recruit workers using DNA, improve your lab, and grow your army of giant monsters ready for battle. - Tower Defense Meets Alien Strategy: Overwhelm human fortresses and military bases with your powerful alien creatures. - Upgrade Everything: From your lab to your monsters, every improvement brings you closer to world domination. - Arcade Action and Idle Fun:Whether you’re actively raiding or letting your workers handle the upgrades, the gameplay stays engaging. - Conquer Iconic Locations: Explore new levels, challenge human defenses, and take over their strongest fortresses. - Epic Boss Battles:Powerful bosses guard vital resources. Defeat them to expand your invasion! Why You’ll Love It - Sci-Fi Survival: Lead your alien army to victory and take over Earth’s resources while defending your UFO from human counterattacks. - Endless Upgrades: Unlock and improve your monsters, lab, and workers to ensure your invasion succeeds. - Tower Defense and More: Experience a mix of strategy, action, and resource management in one exciting game. Your Ultimate Alien Invasion Awaits! Join the alien heroes and dominate Earth! Use DNA to upgrade your lab, grow your monster army, and crush human military bases. Fight epic battles, upgrade your strategy, and unlock new levels to expand your invasion. Alien Raid: Monster Evolution is your chance to lead the ultimate alien army. Can you conquer the world and prove your dominance? Download now and immerse yourself in this sci-fi adventure where strategy, action, and upgrades meet!

About

Train Defense

Defend a moving train from waves of zombies in this post-apocalyptic survival game. Upgrade defenses, build fortifications, and use various weapons to defeat zombie hordes and powerful bosses. Explore diverse, infested locations on your journey to safety.

Highlights
  • Zombie defense gameplay
  • Train fortification and upgrades
  • Multiple weapon types
  • Boss battles
  • Diverse post-apocalyptic locations
  • Survival mechanics
Features
Read full description

Train Defense is an exciting zombie game that combines the thrill of survival games where you defend yourself against a zombie horde with traveling on a train in a post-apocalyptic world! You're a brave survivor: protect the train and its passengers from the zombie tsunami, fortify the walls, get to the rescue, and don't let zombies infect you! - Zombie defense! Here you should revolve around defending a train from a zombie horde. Your main task is like in a casual zombie shooter game – dunk all the zombies! This is the only way to survive the zombie attack! There are many opportunities to survive, use them all! - Build a train! To enhance your chances of survival, strengthen the train by upgrading its defense power and weapons. As you fight through the levels, you earn gold that you can use to rebuild fortifications. Zombies are very hungry and will show up everywhere. A zombie crowd can break fragile walls, so save up time and resources to rebuild them! Build fortifications and obstacles to prevent zombies from getting on your train. - Heaps of locations! The train moves through different locations: from abandoned cities to desolate highways! But there are practically no people left – you're the last survivor. Almost every location is infested with zombies. - Different weapons! Use various weapons and defense mechanisms to keep the zombie horde at bay while ensuring the train continues on its journey. - Powerful bosses! In addition to regular zombies, the game also features powerful bosses that must be defeated to progress through the levels. You must use all their skills and resources to defeat them and protect the train! Train Defense is an incredibly fun and engaging zombie game that combines elements of zombie defense and survival games. So if you're looking for a new mobile game to play, give Train Defense a try and see if you have what it takes to survive the war Z against the zombie horde."

Screenshots

Alien Raid4 screens
Train Defense4 screens

Verdict

The call

The clearest difference is in-app purchases: Alien Raid at none against Train Defense's 3. Train Defense's advantage is rating (3.9 vs 3.6) and review sentiment (38% vs 22%). On price, ratings volume, update cadence and ads 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. Train Defense sells 3 one-off in-app purchases. Alien Raid asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Train Defense holds the better App Store score, 3.9 against 3.6. Both are backed by a comparable volume of ratings — 30 and 50 respectively. Written reviews point the same way: 22% of Alien Raid's written reviews are positive against 38% of Train Defense's.

UpkeepUpdate frequency

Alien Raid ships an update every 2 months, Train Defense every 3 weeks. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
Alien Raid versus Train Defense: the parameters behind the verdict, then further details
ParameterAlien RaidTrain Defense
PriceFreeFree
Rating3.6 (30 ratings)3.9 (50 ratings) — better
Positive reviews22.2% of reviews37.5% of reviews — better
Number of ratings3050 — better
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size270 MB401 MB
Age rating12+12+
DeveloperMAD PIXELAI Games FZ

Customer experience

Alien Raid

All ratings30 ratings
Positive63.3%
Neutral3.3%
Negative33.3%
Written reviews9 reviews
Positive22.2%
Neutral0.0%
Negative77.8%

Train Defense

All ratings50 ratings
Positive68.0%
Neutral8.0%
Negative24.0%
Written reviews8 reviews
Positive37.5%
Neutral0.0%
Negative62.5%

In-app purchases

None

Alien Raid

No in-app purchases

3 purchases

Train Defense

One-time3
  • No ADs$2.99
  • No Ads Pack$5.99
  • Characters Pack$9.99

Questions

Is Alien Raid free?
Alien Raid is free to download, with no in-app purchases.
Is Train Defense free?
Train Defense is free to download, with in-app purchases available.
Which has better reviews, Alien Raid or Train Defense?
Train Defense is rated higher. Alien Raid averages 3.6 out of 5 from 30 ratings, while Train Defense averages 3.9 from 50 ratings.
Do Alien Raid or Train Defense have ads?
Both Alien Raid and Train Defense show ads.
Which is updated more often, Alien Raid or Train Defense?
Alien Raid ships an update every 2 months, and Train Defense every 3 weeks. Most recently, Alien Raid was updated on October 2, 2026 and Train Defense on October 3, 2026.

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