Train Invasion vs Gravity Frontline
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Train Invasion
Defend a runaway train from relentless zombie hordes in this action-packed defense game. Upgrade your character with powerful perks and unique builds to survive increasingly challenging waves and deadly boss battles. Every run offers a new roguelite experience with stylized visuals and immersive gameplay.
- Dynamic zombie wave battles
- Perk-based upgrade system
- Roguelite progression
- Stylized visuals
- Train defense gameplay
- Boss battles
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Train Invasion – Defend. Upgrade. Survive. All aboard… the apocalypse has arrived. In Train Invasion, you are the last hope for a runaway train hurtling through a world overrun by zombies. Intense combat zones, mysterious lucky rooms, deadly boss battles, and more. Survive relentless zombie waves Equip your character, fight off hordes, and protect the train at all costs. Lose the train, and it’s game over. Activate powerful perks Level up and unlock perks of different rarities. Combine them to create unstoppable builds and crush the undead with style. Key Features Dynamic zombie wave battles Perk-based upgrade system with rarity tiers Roguelite progression – every run counts Stylized visuals and immersive train defense gameplay Ready to protect the last train on Earth? Jump in now!
Gravity Frontline
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Gravity Frontline is a game in which you take command of a team of brave astronauts with the goal of saving space stations from the invasion of aliens, robots, predatory plants, and space monsters! Prepare your astronauts for battle by loading cannons with weapon capsules. Merge identical weapons to craft new, more powerful ones. Find new weapons in cleared stations and expand your strategy! Send your astronauts into battle by shooting them into open space! In zero gravity, they must catch weapons to prepare for battle. Skillfully guide their trajectory, avoiding obstacles and collecting bonuses. Arm your crew to the teeth! Fight on space stations captured by various enemies. Be prepared for unusual conditions - robots can prepare combat turrets, while space spiders set their sticky traps. Defeat all waves to get to the epic boss! Save the galaxy, Captain! Only you are capable of doing this!
Screenshots
Verdict
Train Invasion and Gravity Frontline are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Train Invasion | Gravity Frontline |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (5 ratings) — better | — |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 2 months | — |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 201 MB | 109 MB |
| Age rating | 4+ | 9+ |
| Developer | Kiwert | FreeS Games |
In-app purchases
Train Invasion
No in-app purchases
Gravity Frontline
No in-app purchases
Questions
Is Train Invasion free?
Is Gravity Frontline free?
Do Train Invasion or Gravity Frontline have ads?
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