Backpack Castle Heroes

Contains adsIn-app purchases
15K reviews
Content rating
Everyone
100K+
Downloads
Content rating
Everyone
Mild Fantasy Violence
Learn more
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About this game

Are you ready to defend your castle?

Backpack Castle Heroes is a casual game that delivers the fun of fight and strategy in a tower defense (TD) experience.

Your castle wall is your backpack — place your hero units and weapons into the grid to protect your fortress, survive endless enemy waves, and enjoy the thrill of a truly strategic defense game!
Space is limited, and every item takes up a different number of slots. Packing your backpack right is what wins the wave.

Hold off the incoming waves and keep the fight going.
With auto battles, you'll defeat enemies and gain EXP—then choose from 3 random upgrades each time.
Your choices shape every run, letting you experience a fresh roguelike, random-powered playstyle again and again!

Merge your hero and gear to power up even further.
Clear stages to earn resources and upgrade your stats continuously.
Collect cards to complete your build, strengthen your strategy, and survive tougher and tougher waves!

Simple controls that are easy to pick up, but packed with strategic depth.
A bit of luck and one decision can completely change the flow of the fight.

Play offline anytime, anywhere.

Jump into this casual game and enjoy the satisfying growth of merge, strategy, and roguelike tower defense in Backpack Castle Heroes!

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📩 Support: support@neptunecompany.kr
📄 Terms of Service: https://neptunecompany.kr/gameterms
🔒 Privacy Policy: https://neptunecompany.kr/gameprivacy
Fill your Backpack, Defend Your Castle with Merge & Strategy!
Updated on
Jul 27, 2026
Available on
Android, Windows*
*Powered by Intel® technology
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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
  • No data collected
    Learn more about how developers declare collection
  • Data isn’t encrypted
  • Data can’t be deleted

Ratings and reviews

14.5K reviews
J. Ro
August 16, 2026
Too many unreliable ads in the mix. I understand the design to incentivize ads. For a few weeks this worked fine and I didnt understand the complaints. But then I started getting ads that had NO progress bar and the X never appeared. So I'd force close the game and re-open it, only to find I had to start from scratch. So I tried not watching ANY optional ads. Died on wave 3. This was repeatable. So you need ads to actually beat levels, and the ads hang and cause you to fail levels. Awesome. Not.
3 people found this review helpful
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Kenuda
June 23, 2026
Easily one of the most annoying games of its genre. It is constantly throwing high level gear and tiles into your selection to get you to watch ads. Tiles and rerolls are an ever growing cost but, it is random what you get, thus you will likely have to watch an ad to get a decent set of tiles. The worst thing though? I saved up gems to get 500 gold. It wouldn't even let me spend the gems without paying real money. What a waste of my time!
7 people found this review helpful
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NEPTUNE(TREEPLLA)
June 25, 2026
Thank you for sharing your experience. We understand your frustration with the ad incentives and gem usage. We'll consider your feedback as we strive to improve the game balance and user experience. Your input is valuable to us, and we'll look into these concerns.
Lucas Murray
June 1, 2026
I spent $2 on this game thinking, oh it's a fun time waster. How wrong I was. the amount of ads is annoying but not out of the norm, on my device (Pixel Pro Fold 9) I can't exit an ad, the button to end the ad never appears so I have to close the app and reopen but then I've lost whatever reward I was supposed to get from the ad. add to that the fact that I literally paid to get items that would help and the game itself is basically impossible for me to play. 0 stars, run away from this game
12 people found this review helpful
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NEPTUNE(TREEPLLA)
June 2, 2026
Hello, we’re sorry for the inconvenience. This issue may occur due to an error from a specific ad network. We kindly ask you to try resetting your ad ID. Thank you.

What’s new

• Bug fixes and performance improvements.