Undead Siege: Tower Defense

Contains adsIn-app purchases
25.3K reviews
Content rating
PEGI 12
1M+
Downloads
Content rating
PEGI 12
Horror
Learn more
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About this game

In Undead Siege, it's up to you to select the right troops, create powerful formations, and deploy your best strategy to defeat waves of zombies and deadly bosses.
A new type of puzzle-adventure bag fight game! Make decisions on the right troops in your backpack for each wave of enemies.
Build your ultimate squad by collecting and upgrading unique heroes, and merge soldiers to create stronger, more efficient units. Stay sharp and challenge players from around the world in this thrilling fight for survival.
Prepare yourself, Commander! The undead are waiting. Will you be the last one standing?
Merge, organize, bagpack, fight, and conquer in the Undead Siege!
Updated on
Oct 21, 2026

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 3 others
  • This app may collect these data types
    Location, Personal info and 2 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

24.3K reviews
Ys Liew
October 12, 2026
It is a very nice and fun game. However the frequency of advertisements to watch is too much. For two hours of gameplay I have spent at least one hour watching advertisements, in order to get upgrades to pass the stages... I like the game but got irritated by its play, I'm deleting it...
1 person found this review helpful
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Mike
November 1, 2026
Pretty much never going to get anywhere unless you watch ads. Upgrades and progression is way too slow to play the game and a constant grind which forces you to give up or watch a ton of ads to survive and progress.
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Pawel Skwarczowski
October 6, 2026
the game itself is cool, HOWEVER. everything, and I mean absolutely everything is blocked behind ads. I completely dont understand the decision to block dungeon sweep behind paywall. I haven't seen any other devs do this, I don't have 1-2 hours a day to play so all my dungeon attempts are usless to me which further slows down progress. Every daily, weekly, monthly, event upgrades in round, extra tiles, and some regular troops require watching ads and these are all at leas 1-2 min long stints.
1 person found this review helpful
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What’s new

• New special events in main stages offer different battle rewards.
• Supply Pods offer Power Core boosts or Overclock Tech with both benefits and drawbacks.
• Based on community feedback, we adjusted main-stage difficulty and reduced elemental effect strength.
• Improved Gem Mining and trait transfer tips, plus Gem rarity and lock indicators.
• Fixed auto-battle formation stalls, boost selection issues, repeated Gem merge reward pop-ups, and some unit attack issues.