Fortress Merge: Puzzle Defense

In-app purchases
3.9
34.1K reviews
1M+
Downloads
Content rating
Everyone 10+
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About this game

Fortress Merge: Puzzle Defense is your next addictive obsession in the world of strategy games! Step into a thrilling realm where every puzzle you solve fortifies your castle defense. Defend your city, merge your way to power, and conquer endless enemies in this action-packed puzzle defense experience. In Fortress Merge: Puzzle Defense, the key to survival lies in how you merge, upgrade, and defend. Welcome to the ultimate test of tactics, timing, and tenacity. If you're a fan of zombie tower defense, roguelike challenges, and strategic gameplay — Fortress Merge: Puzzle Defense was made for you!

Immerse yourself in a world where your fortress is constantly under siege by waves of terrifying zombies. Only the sharpest minds can master the art of merging and stand strong in this apocalyptic realm. With influences from top strategy war games, this title combines the tactical depth of battle strategy games with the casual appeal of puzzle mechanics and the intensity of castle defense.

Prepare to rise as the ultimate guardian of your land. With each wave, your fort becomes a symbol of resistance. This game amps up the stakes with intense roguelike gameplay that ensures no two runs are the same. Plan your upgrades, merge powerful facilities, and choose the right skills to build an impenetrable fortress. Whether you're a seasoned tactician or new to tower games, the fast-paced, ever-changing combat will keep you on your toes.

Fight off zombies in epic tower defense showdowns as you make each choice count. Will you build your strategy around devastating traps, elite knight games units, or brute-force turrets? How will you respond when your base is under siege with no escape? With every wave, you'll unlock new content, test your tactics, and define your legend.

From engaging casual sessions to hardcore strategy games marathons, this game caters to all playstyles. Challenge yourself with tough decisions and satisfying victories that define great defense games.

Features:
šŸ”„ Merge & Upgrade: Combine different types of buildings to create powerful structures and enhance your defenses.

🧠 Strategic Gameplay: Think ahead, plan your moves carefully, and use your resources wisely to outsmart your enemies.

āš”ļø Wave After Wave: Defend your home from increasingly difficult waves of enemies — don’t let them surround you!

🧩 Exciting Puzzle Mechanics: Solve puzzles and face thrilling challenges while keeping your defense strong.

✨ Stunning Graphics & Engaging Action: Immerse yourself in beautifully designed environments with smooth, fast-paced gameplay.

Only a true guardian can withstand the chaos threatening your fortress. In this war-torn world, where legions clash and zombies multiply, your fort is your last hope. Rally your legions, master the art of the puzzle, and fight for survival. Your every move in this castle defense game determines whether you rise as a legend or fall into ruin.

This is not just another zombie defense game — this is where puzzle, combat, and tactics collide. Download now and become the legend who defends the last stronghold in a world at war. Prove your worth in one of the most thrilling roguelike and battle strategy games of our time.

Merge. Defend. Conquer. Only in Fortress Merge: Puzzle Defense.
Updated on
Dec 3, 2025
Available on
Android, Windows*
*Powered by Intel® technology

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, Financial info and 2 others
This app may collect these data types
Location, Financial info and 3 others
Data isn’t encrypted
Data can’t be deleted

Ratings and reviews

3.9
32.6K reviews
Kadin Coombs
September 17, 2025
Don't bother. Other games do it better. There is a lot needed to fix. Heavily reliant on mines get anywhere. Clearing trees takes so many rounds worth of income. Enemies get super strong quickly. You can't rearrange your base after placing things because you can only hold 3 in storage. Hero upgrades require gems instead of gold like everything else. Everything about this game screams "pay for me" Forcing ads to play is a terrible way to treat players, especially if kids are going to play.
68 people found this review helpful
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Wes Hartman
November 30, 2025
Was fun, last 2 updates broke it. I had been playing for about a week and when it updated before Thanksgiving I was unable to continue. I was on level 22 and could play 2 rounds before it broke. No items would pop-up to continue building for round 3 and all controls would be stuck. Would have to quit the game completely to restart. Leveling up the hero was also busted and unusable. I was hoping the latest update fixed these issues but no. Still broken. I was enjoying the game when I could play.
5 people found this review helpful
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Eric Raymond Ives Rogers (Lanti/Ƅtlanticius)
November 30, 2025
I'm on level 9. my hero is missing from the hero page the objects are there but the person is not, also when I hit Wave 2, it, regardless of what level I'm on, once the battle is over and it's supposed to give me the three new buildings to add to the battle it freezes it won't show me the new buildings, the existing buildings continue to recuperate until they are full but I can't continue there's no button to go on to Wave 3. cant reinstall cause it's thru scrambly. plz advise asI'm on a timer.
3 people found this review helpful
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TapNation
December 1, 2025
Hey, thanks for reporting this bug. We're actively working on a fix for the next update — sorry for the inconvenience!

What’s new

- Bug fixes