Star Marines: War Invasion TD

Contains adsIn-app purchases
4.06K reviews
Content rating
PEGI 3
50K+
Downloads
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About this game

Star Marines: War Invasion! The war for this sector of the galaxy has begun! Warning sirens scream across your fortress. Hostile contacts detected! A massive enemy force is on the approach! Prepare for the fight, Commander! On this crucial outpost, your Star Marine force is the last line of defense for your vital base. This is no mere skirmish; it's an epic, endless war against relentless alien enemy swarms! Get ready for battle!

Dive into the intense, strategic battle of this epic idle tower defense (TD) experience. Your mission is crystal clear: fight and defend against unstoppable waves of diverse and terrifying enemies. Confront alien force swarms of metallic beetles, buzzing drones, horrifying giant spiders, and other monstrous entities. Each enemy force is determined to breach your fortress perimeter and overrun your strategic towers and positions.

But you face this war with your elite Star Marine force! Command hardened veterans equipped for any battle with advanced weaponry and cutting-edge tech. Deploy your force strategically, positioning your Marines, defensive towers, and strategic fortifications to create an impenetrable defense strategy. Your Star Marines are the key to holding the line against the alien enemy tide – they fight the front lines, man the heavy weapons, and stand their ground for the fortress!

This is where the idle advantage is crucial. The battle for survival across the galaxy never truly stops. Even when you're offline, your dedicated Star Marine force continues the fight, holding back the enemy waves and gathering vital salvage and resources needed for the next battle. Jump back in to reinforce your force, research powerful tech upgrades for your towers and Marines, unlock new units, and strengthen every aspect of your fortress defense.

This is your solemn duty in this galaxy war: a continuous fight to refine your strategy and push back the alien enemy threat. Enhance your Star Marine force, customize their loadouts for the next battle, and build the ultimate fortress defense against the encroaching enemy swarm. The fight for survival is brutal, but victory in battle earns crucial salvage needed to stand against the ever-increasing enemy force. Upgrade your fortress, strengthen your towers!

Are you ready to lead your elite Star Marine force into the heart of the war against the alien enemy force across the galaxy? Can your tower defense (TD) strategy hold against the endless enemy waves of beetles, drones, spiders, and other monsters? Download Star Marines: War Invasion now and deploy your force in the ultimate epic battle! Your fortress survival in this war depends on the courage of your Marines, the strength of your towers and defense, and your strategic mind in the fight!
Lead Star Marine force, defend fortress & fight enemy in epic idle TD war game.
Updated on
Apr 17, 2026
Available on
Android, Windows*
*Powered by Intel® technology

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, Personal info and 4 others
  • This app may collect these data types
    Location, Personal info and 4 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

3.79K reviews
Frederic Gendron
June 27, 2026
Looks abandoned and I take back my good review for this game. As you are forced to replay missions many times to get stronger to beat the next levels, which I don't mind but the thing is, the missions you are grinding become more difficult everytime you comeplete them for some reason, to a point where I can only bring the monsters down to 1 hp and my guy can't seem to be able to shoot them twice so the base is getting wrecked by dozens of 1 hp monsters and there's nothing to be done.
1 person found this review helpful
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Frank
April 29, 2026
I rally loved this game. But unfortunately it seems to have been abandoned by the developers 😥 The game does not work anymore, only get stuck in loading screen saying I'm having network problems. And I don't. I wrote dev's an email, so far no replay 😥 Very very sad about this. I spent lots of money and time on this game.
1 person found this review helpful
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Travis Belleville
March 28, 2026
Great potential, unfortunately I just bought the next gun and it still won't unlock, not sure what to do there isn't a "contact us" option in the game. The game is pretty fun just a smidge too many options to pay2win. Most games have a permanent stop ads feature but this game forces you to buy skip ad consumables. It also doesn't explain simple things like if I unlock a base skin for plasma, do I still keep my base skin buff from electrical!? is it worth unlocking them all then or no?
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What’s new

Improvements & bugfixes!