Last Fortress: Underground is a compelling mix of Fallout Shelter-style base management and a modern mobile 4X strategy game. The 'ant farm' view of your bunker is incredibly detailed; watching your survivors move between the generator, the kitchen, and the laboratory makes the base feel alive. The transition from the underground management to the overworld exploration provides a nice change of pace.
The game excels at making you care about your 'Heroes.' Each survivor has a specific role, and building the right team for scavenging runs is vital. While the late-game does lean into the typical social/alliance warfare seen in games like Rise of Kingdoms, the early to mid-game survival management is some of the best in the genre. It captures that desperate 'one more resource' feeling perfectly.
Available on: iPhone, iPad, iPod
Version 26.0201.001Tue Feb 03 2026
Regular improvements and patches
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!
Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.Build and expand your underground fortress to survive the zombie apocalypse!
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!














Take command of the last bastion of humanity. In Last Fortress: Underground, you must dig deep to expand your bunker, assign survivors to vital roles, and develop technology to survive the zombie apocalypse. Explore the overworld map to rescue others and scavenge for supplies, all while forging alliances with other players to dominate the wasteland.
Detailed bunker building
Hero collection and leveling
Alliance-based warfare
Strategic resource management
Explorable wasteland map
Place your Power Generator near the center of your base to minimize the travel time for workers. Grouping related facilities, like the Diner and the Farm, streamlines your resource production.
The top 5 apocalypse games on iOS in the United States showed varied performance trends in terms of downloads, revenue, and weekly active users.
Sensor Tower - Thu Aug 29 2024
IM30, Life Is A Game Limited, has released a new strategy mobile game, Last Fortress: Underground. In Last Fortress: Underground,...
GameSpot - Mon Aug 29 2022
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.
AppAdvice - Fri Jul 29 2022
Combine heroes from the same faction to unlock powerful combat bonuses. A well-balanced team with a tank, a healer, and high-damage dealers is essential for clearing zombie-infested floors.
You can recruit survivors through the Radio Station or by completing specific story missions and rescue operations on the world map.