Last Fortress: Underground

In-app purchases
3.8
430K reviews
10M+
Downloads
Content rating
Teen
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About this game

Castle, the largest community of survivors, has fallen.

Once a beacon of hope in the post-apocalypse, it now shares the same fate as the rest. Amidst the chaos, a small group of survivors managed to escape into the barren wilderness.

You are the Commander of these survivors. While escaping the zombie horde that utterly destroyed your last sanctuary, you come across a strange building jutting out from the ground. Low on supplies and left with little options, you decide to take refuge in this building. So begins your campaign of survival in this zombie-infested world.

【BUILD & CUSTOMIZE YOUR SHELTER】
Expand your shelter with numerous facilities such as the Satellite Nexus, Power Generators, the Mission Control, etc. Design the shelter’s layout whichever way you like!

【HEROES AND SURVIVORS】
Every hero and survivor possesses special life skills that helped them survive in the apocalypse. From chefs, doctors, and engineers to scientists, miners, and soldiers, it’s up to you to effectively utilize their skills!

【TEAM COMPOSITION AND SYNERGY】
Assemble a diverse team of heroes, each with their unique personalities and abilities. Formulate your favorite team combination to help you conquer even the most daunting of situations.

【VENTURE INTO THE WILD】
Journey outside the shelter and scavenge for valuable resources in the wastelands.
Set up camps to act as forward operating bases and resource points. But be on guard! Zombies could attack at any moment!

【ESTABLISH ALLIANCES WITH FRIENDS】
Fighting alone is hard, so why not fight alongside friends? Join or create an Alliance and exterminate those pesky zombies with allies! Assist allies by accelerating each other’s constructions and tech researches.
It’s a win-win situation either way! It's all or nothing now! Go forth, Commander, and embark on your adventure!
Updated on
Mar 15, 2026
Available on
Android, Windows
Events & offers

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.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Financial info and 4 others
Data isn’t encrypted
You can request that data be deleted

Ratings and reviews

3.8
401K reviews
Rachel Goldwater
August 28, 2024
I waited a while after downloading this game and playing it to give it a fair shot - but now I have to say that I agree with the other reviewers who said it's kind of impossible to play when your fortress is getting attacked all the time. When starting the game, all you have to do is build, which is cool. But the higher you level up, the more "exposure" you have in the world. I wish there was a way to play by just building out your fortress, offline, so you could just enjoy the it w/o other ppl
433 people found this review helpful
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LIFE GAME PTE. LTD.
August 29, 2024
Dear Player, Thank you for your support, and we apologize for the inconvenience. We’ll forward your feedback to our team to improve the game. If you encounter any further issues, please contact us.
Jazmin Phillips
January 10, 2026
The game has a lot of fun elements, though the guild system of the game is annoying. Getting attacked by other players is annoying, but comes with mmo games in general. My main issue is that as of the last few hours: every time I try to open the game it doesn't load to 100%. It just sits at 99% and won't fully load in. I don't know if it's because of the recent update but neither restarting my phone nor reinstalling the game did anything to fix it. I hope this issue can be resolved soon.
12 people found this review helpful
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LIFE GAME PTE. LTD.
January 10, 2026
Thank you for sharing your detailed feedback. We’re glad you enjoy many aspects of the game, and we understand how frustrating it must be when the loading stops at 99%. Please contact our in-game support team with your device details and a brief description of the issue so we can investigate and help resolve it promptly.
The Little Cube
March 4, 2026
It seems decent so far. I'm too scared to make a purchase cause none of the login options work to save the game. so yea don't want to purchase a perk if I'm just gonna get reset. ah well. edit. just got to the part where its another cloned 4x game. why wasn't this in the ads. so much content just to be ruined.
2 people found this review helpful
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LIFE GAME PTE. LTD.
March 4, 2026
Thank you for sharing your experience. We’re sorry to hear about the login issues and that the gameplay didn’t meet your expectations. Please contact our in-game support team with details about your login problem so we can assist you directly. Your feedback on the ads and gameplay has been forwarded to our team for review.

What’s new

Regular improvements and patches