Merge Mercs: Tower Defense TD

Contains adsIn-app purchases
4.2
67 reviews
10K+
Downloads
Content rating
PEGI 3
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About this game

Enter the Ultimate Merge Tower Defense – Defend Earth with Strategy and Skill!

The Erasers have invaded Earth, aiming to turn humanity into part of their relentless armada. In this thrilling tower defense game, it’s up to you to lead the resistance! Gather your team, devise your tower defense strategy, and dive into a tower war where only the sharpest minds will prevail.
In this TD game, summon, merge, and level up your units to withstand waves of alien forces. The merge tower defense mechanic allows you to combine units, making each tower defense stronger and more resilient. It’s not just about defense; it’s about crafting the perfect tower defense game strategy to protect your base at all costs in this merge TD experience!

Extraordinary allies are joining the fight! From fearless rebels to science-loving strategists, Earth’s bravest are here to stand by you. Build your ultimate deck and upgrade each unit to unleash powerful abilities and defend your camp. Mastering the merge is key to success in this tower madness!
Challenge the invaders in PvP battles, or unite in Co-Op mode to defend together in TD protect games. As you climb the TD ranks, unlock biomes and cards to expand your collection and gain critical resources. The Arena awaits, where you can prove your strength and rise in the tower clash ranks. Only the best strategists will dominate this defense game!
In this world of random luck and calculated strategy, every choice counts. Join this epic tower brawl and experience the unique realm defense Earth needs. It’s time to protect your home, command your team, and make your mark in the ultimate merge tower defense challenge!
Are you ready to stand against the Erasers? Show them that humanity is more than just another conquest in their tower war!
Updated on
May 16, 2025

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
Device or other IDs
This app may collect these data types
Financial info, App activity, and App info and performance
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.1
64 reviews
dakota sukow-manry
March 7, 2025
I have found a couple of bugs, 1. When merging units, they sometimes show the wrong sprite ( ex: Booster actually being an Agent Anna ) and 2. When summoning in units, the game sometimes double summons and will not allow you to merge or summon into the space that was double merged. The unit summoned in this space also does not attack. Great game overall though... just wanted to report these small bugs I found ( these bugs only occur after the first boss btw)
2 people found this review helpful
Kevin MacLeod
March 7, 2025
Promising but incomplete The game is similar to other tower defense merge games in that you play against opponents doing the same (i.e Ludo) but lacks proper game logic or explanations. - Opponents or partners either don't add units or not enough units to get past co-op bosses. - When playing PVP, opponents unit level doesn't track despite animation indicating the unit levels. - During Co-Op factor selection for the round, the factors are never explained and there are no tooltips to reference.
1 person found this review helpful
Andre L
March 11, 2025
You are only playing against or with bots and the logic of said bots is terrible. This is an exact copy of some many other games, just done substantially worse.
2 people found this review helpful