Merge Defense 3D

Contains adsIn-app purchases
4.0
24.8K reviews
1M+
Downloads
Content rating
Everyone
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About this game

Merge Defense 3D is an easy to play but challenging tower defense game with numbers!

Train your brain with calculating and multiplying, think ahead by counting and making predictions, merge to become stronger, enjoy the interesting concept and addictive gameplay. Make the time fly with this merge and tower defense game!

How to play:
• Place defenders on the board to shoot enemies
• Merge two defenders with the same numbers to upgrade its power
• Collect Keys to get more defenders
• Collect Gems to use power-ups and tools like freeze, bluster, and time killer
• Survive as long as you can

Game Features:
• Puzzle game to train your brain
• No time limit - no pressure
• Completely free

Try the ultimate mix of tower defense, shooter and merger games and have fun!
Updated on
Nov 26, 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 3 others
This app may collect these data types
Location, Personal info and 4 others
Data isn’t encrypted
You can request that data be deleted

Ratings and reviews

4.0
23.7K reviews
Keisha Ferguson
February 6, 2022
I would give more stars because I honestly like the game and concept, but it's poorly executed. The ads are annoying especially since I paid to not have them. I could technically tolerate the ads, but after awhile the ads start freezing which causes you to leave the game and lose progress. So, if the ads didn't freeze and I didn't lose my progress I'd be okay ( not a 100% happy), but okay with the ads.
38 people found this review helpful
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Mdbgamer
January 9, 2022
Honestly, this is a neat little time burning game. Unlock towers. Merge them. Defend against waves. Simple. The ads were annoying, and I only ever played away from home, so I'd turn my roaming off and play for hours. Now, I can't even play it offline. It was a good game, but if you're going to shove ads down my throat, then I'm not going to enjoy the game.
28 people found this review helpful
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Kris Marsh
August 31, 2021
A puzzle game, that is fairly decent, and brimming with ads, incorporated into progression, as an option, to not spend in-game currency... Gems are earned to spend on progress and second tries... But, points are very difficult to attain, so high scores take some serious time to achieve, if possible... There was a $2.99 download, on Google play, to have the ads removed... I made this purchase, and the ads kept flowing. Can't seem to find and complain for refund, though...
20 people found this review helpful
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