Last Fortress: Underground

In-app purchases
3.8
429K reviews
10M+
Downloads
Content rating
Teen
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About this game

Commander, survivors need your leadership! Build a bunker, collect resources, upgrade buildings, work out tactics, and shore up defense in the zombie-infested apocalyptic world! Fight off zombies and be the master of your own fate!

怐BUILD A SHELTER UNDERGROUND怑
Direct survivors to dig deep down and expand the bunker. Don't miss out on ores and even treasures! But keep your eyes peeled, as you could run into zombies! Get rid of them, reclaim your space, and build a brand new world underground!

怐CUSTOMIZE YOUR BUNKER怑
Design the bunker layout the way you like! Level up various rooms to grow faster and take in more survivors, who can help you with your development. Be sure to grow enough food to make sure there is always food on the table!

怐RECRUIT HEROES怑
Send your invite to heroes with the radar! The heroes all have their own expertise, be it for construction, farming, foraging, or zombie fights. Recruit them and experiment with different lineups to create an invincible team!

怐EXPLORE THE WORLD OUT THERE怑
Train your armies and deploy them to war! Assign them to gather resources, exterminate zombies, capture desolate cities, and restore them to formal peace. Considering the resource shortage everywhere, zombies might not be the only threat!

怐TEAM UP FOR SURVIVAL怑
Remember, you are not alone! Create an alliance to call reliable allies together, and help each other out to develop faster. Solidarity is the best policy whether in zombie fights or alliance clashes!

Delve into refuge management, or conquer the world? How would you leverage your resources and time? Your fate is in your own hands! Every decision you make could shape the future! Join now for free to rule the doomsday world with players across the globe!
Updated on
26 Aug 2025
Available on
Android, Windows
Events and 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
400K reviews
Rachel Goldwater
28 August 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
301 people found this review helpful
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LIFE IS A GAME LIMITED
29 August 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.
Chadd Simpson
14 January 2025
We play it, because we are used to playing, and have friends who play & for some reason, want to get to that next level, that takes progressively more time, like what took half a year, the next level takes a year, and you need three of those. Not sure how I'll ever get 75k for my lvl 2 floating fortress (after lvl 30 for the underground, you get a whole new floating fortress & after processing ore for a year, only have 3k, so unless you pay, will take years to level up!). My advice, DONT PLAY!!
737 people found this review helpful
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LIFE IS A GAME LIMITED
21 January 2025
Dear Player, We're sorry to hear about the issues you’re experiencing. If you encounter any problems in the game, please don’t hesitate to reach out to us immediately.If you need help, please contact support through the "Game Interface > Announcement > Customer Support > Help" section.
Matthew Lee
14 August 2025
The game has become a weekly expense of 2-3k USD if you want to be competitive. Free to play are food/farm accounts so be ready to drop a lot of money if you want to compete. The studio does not do much for free to play players as upwards of 95% of content is stuck behind a pay wall.... Then there is the gambling aspect... Only positive at this point are the friends made in the game. Meeting people from all over the world has been fun.
11 people found this review helpful
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What's new

Regular improvements and patches