Best Merge Tower Defense Games

211+ iOS apps & games curated and reviewed

4.6 avg rating
20 free apps & games
Updated July 2026

The best merge tower defense games apps on iPhone average 4.6★ across 211+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.

Top Picks for Merge Tower Defense Games

Rush Royale: Tower Defense RPG#1

Rush Royale: Tower Defense RPG by MYGAMES MENA FZ LLC

PvP Card battle・Merge Strategy
Editor's Choice
🎮 Games
4.5😐(94K ratings)
FreeAdsIn-App Purchases
#70in Games
Rush Royale: Tower Defense RPG screenshot 1
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Rush Royale: Tower Defense RPG screenshot 6

Collect and merge units to build a powerful deck for strategic base defense. Engage in PvP battles or team up with friends in Co-Op mode to conquer enemies and earn rewards. Master unique unit abilities and faction synergies to prevail.

What We Love

  • 🚀 Fun and addictive gameplay
  • 👍 Good casual game for short sessions
  • 💡 Unique tower defense mechanics
  • 🎨 Vibrant and colorful visuals

Room to Improve

  • 💰 Heavily pay-to-win model
  • 🔀 Matchmaking issues and unfair pairings
  • 🐛 Frequent connection issues and bugs
Tower War - Tactical Conquest#2

Tower War - Tactical Conquest by SayGames LTD

Use Military Strategy to Win!
Strong Contender
🎮 Games
4.6😞(169K ratings)
FreeAdsIn-App Purchases
#36in Games
Tower War - Tactical Conquest screenshot 1
Tower War - Tactical Conquest screenshot 2
Tower War - Tactical Conquest screenshot 3
Tower War - Tactical Conquest screenshot 4
Tower War - Tactical Conquest screenshot 5
Tower War - Tactical Conquest screenshot 6

Engage in a charmingly simple yet strategically deep casual tactics game. Swipe to command your forces, conquer enemy towers, and overcome diverse challenges. Unlock new tower types and navigate intricate battlefields for hours of addictive conquest.

What We Love

  • 🚀 Smooth gameplay
  • 🤩 Addictive and fun
  • 👍 Challenging levels
  • 🤖 Engaging tower defense mechanics

Room to Improve

  • 🤬 Excessive ads during gameplay
  • 💰 Expensive in-app purchases
  • 🔁 Repetitive level designs
Merge Gun: Tower Defense#3

Merge Gun: Tower Defense by HAPIGA VIET NAM COMPANY LIMITED

Merge to defend
Worth Considering
🎮 Games
4.8(1.1K ratings)
FreeAdsIn-App Purchases
Merge Gun: Tower Defense screenshot 1
Merge Gun: Tower Defense screenshot 2
Merge Gun: Tower Defense screenshot 3
Merge Gun: Tower Defense screenshot 4
Merge Gun: Tower Defense screenshot 5
Merge Gun: Tower Defense screenshot 6

Merge and upgrade towers to defend your realm against waves of monsters. This game offers simple, engaging gameplay with strategic depth for countless challenges. Enjoy stunning graphics and lively sound in this free-to-play tower defense experience.

More Merge Tower Defense Games apps to explore

4
Slime Legion
Slime Legion
Slime Legion
Roguelike tower defense!
Free

Defend your monster forest from invading heroes by merging and evolving your creatures. Strategically build your lineup and protect your castle in this addictive roguelike tower defense game.

Merge and evolve monstersRoguelike skill selectionTower defense gameplay
🎮 Games
(4.8K)
free with in-app purchases
5
Merge Clash: Tower Defense
Merge Clash: Tower Defense
Merge Clash: Tower Defense
Tower Defense Games Random PvP
Free

Engage in strategic tower defense battles by collecting, merging, and upgrading unique towers. Defend your kingdom against waves of enemies and epic bosses in both solo and multiplayer modes. Master deck building and tactical deployment to outwit opponents.

Collect and upgrade 50+ unique towersBuild and upgrade defensesEngage in PvP battles
🎮 Games
(12K)
free with in-app purchases
6
Shooting Tower: Defense Game
Shooting Tower: Defense Game
Shooting Tower: Defense Game
Merge guns and guard the base
Free

Engage in an intense shooting and strategy game where you merge defensive towers to repel waves of monsters, orcs, and aliens. Develop tactical formations and upgrade your war machines to protect your base and survive challenging boss attacks.

Merge towers for upgradesStrategic tower placementRepel diverse enemy waves
🎮 Games
(16K)
free with in-app purchases
7
North Tower! Merge TD Defense
North Tower! Merge TD Defense
North Tower! Merge TD Defense
3D Tower Defense Strategy Game
Free

Merge weapons to power up your army and defend your land in this 3D tower defense strategy game. Combine merge, clicker, and idle gameplay to defeat enemies and bosses. Unlock heroes and battle other players for rewards.

Merge weapons to power upBuild and grow your armyStrategic tower placement
🎮 Games
(845)
free with in-app purchases
8
Merge Tower Defense 2021
Merge Tower Defense 2021
Merge Tower Defense 2021
Drag and Merge
Free

A simple tower defense game where you drag and merge towers to level them up. Defend your gem from enemies and bosses with increasingly powerful defenses. Test your tactical skills in this classic genre.

Drag and merge towersLevel up defensesProtect your gem
🎮 Games
(32)
ad-supported
9
FireLine: Merge Defense
FireLine: Merge Defense
FireLine: Merge Defense
Best merge tower defense game
Free

Engage in an addictive tower defense experience where you merge cannons to create powerful upgrades. Strategically position your enhanced defenses to repel waves of cube enemies and formidable bosses.

Merge cannons for upgradesStrategic defense positioningDefeat cube armies
🎮 Games
(531)
free with in-app purchases
10
The Tower - Idle Tower Defense
The Tower - Idle Tower Defense
The Tower - Idle Tower Defense
Base defense, kill the enemy
Free

Build and upgrade a single tower to defend against waves of enemies in this incremental tower defense game. Make permanent upgrades, unlock new areas, and compete in tournaments. Enjoy addictive gameplay with a vast array of strategic choices.

Build and upgrade a single towerDefend against enemy wavesPermanent upgrades and research
🎮 Games
(19K)
free with in-app purchases
11
Fortress Merge
Fortress Merge
Fortress Merge
Roguelike City Defend Game
Free

Engage in strategic city defense by merging and upgrading buildings to fend off relentless enemy waves. This action-packed puzzle game challenges you to plan your moves carefully and use resources wisely to survive. Immerse yourself in exciting gameplay with stunning graphics and fast-paced action.

Merge and upgrade buildingsStrategic gameplay and resource managementDefend against enemy waves
🎮 Games
(9.7K)
free with in-app purchases
12
Crazy Kings Tower Defense Game
Crazy Kings Tower Defense Game
Crazy Kings Tower Defense Game
Fight Strategic TD Battles
Free

Engage in strategic tower defense battles across diverse environments. Collect and upgrade over 90 cards, including heroes, towers, spells, and equipment, to defeat over 100 types of enemies and challenging bosses. Compete in daily battles and weekly tournaments for rewards.

Over 90 collectible cards20+ specialized towers20+ diverse spells
🎮 Games
(1.8K)
free with in-app purchases
13
Merge Defense 3D!
Merge Defense 3D!
Merge Defense 3D!
Strategic Tower Defense
Free

Merge Defense 3D is a strategic tower defense game where players merge defenders to upgrade their power and protect against advancing enemy blocks. With challenging brain puzzles, simple controls, and free offline play, it's the perfect game for daring minds. Survive as long as you can and have fun!

🎮 Games
(1.1K)
14
Kingdom Rush Tower Defense TD
Kingdom Rush Tower Defense TD
Kingdom Rush Tower Defense TD
Epic Strategy Offline Game
Free

Defend your kingdom from evil forces using a variety of towers and spells. Command mighty heroes and lead your army to victory in this offline strategy game. Customize your defenses and face unique enemies and epic boss fights.

Strategic tower placement and upgradesCommand 13 unique heroesOver 50 unique enemy types
🎮 Games
(73K)
free with in-app purchases
15
Brave Merge - Battle & Defense
Brave Merge - Battle & Defense
Brave Merge - Battle & Defense
The undead are attacking!
Free

Defend your kingdom from an undead invasion by merging warriors to create powerful knights. Build and upgrade village structures to generate passive income and invest in your army's defense. Strategize your battles against zombie hordes and fearsome bosses in this adventure game.

Merge warriors to level upUnlock village buildings for passive incomeUpgrade buildings with a second currency
🎮 Games
(5.5K)
free with in-app purchases
16
Crazy Defense Heroes: RPG TD
Crazy Defense Heroes: RPG TD
Crazy Defense Heroes: RPG TD
Tower Defense Strategy Game
Free

Build and upgrade towers, collect hundreds of cards, and command heroes to defend your kingdom. Engage in strategic battles against hordes of enemies across over 1,000 levels. Join forces with other players for epic clan quests and boss fights.

Tower defense strategyCollect over 400 cardsCombine Hero, Tower, Spell, and Equipment cards
🎮 Games
(8.1K)
free with in-app purchases
17
TDS - Tower Destiny Survive
TDS - Tower Destiny Survive
TDS - Tower Destiny Survive
Idle zombie defense survival
Free

Build and defend a mobile tower against waves of attacking zombies. Collect blocks to construct your fortress, equip it with weapons, and strategize your defense to survive the apocalypse. Upgrade your arsenal and progress through levels in this engaging RPG shooter.

Tower construction and defenseIdle zombie wave shooterWeapon collection and upgrades
🎮 Games
(87K)
free with in-app purchases
18
Merge Tactics: Castle Defense
Merge Tactics: Castle Defense
Merge Tactics: Castle Defense
Merge TD - Block the Invaders
Free

This tower defense game challenges players to strategically place and merge blocks to create powerful units. Build diverse decks and expand your territory to fend off waves of invaders, while growing your castle and characters for enhanced skills and rewards.

Strategic block placementMerge blocks into powerful unitsCreate custom battle decks
🎮 Games
(889)
free with in-app purchases
19
Merge Kingdoms - Tower Defense
Merge Kingdoms - Tower Defense
Merge Kingdoms - Tower Defense
Merge your defenses!
Free

Engage in a unique tower defense experience with idle progression. Combine towers to enhance their power and strategically place them to overcome thousands of enemy waves. Unlock new abilities and power-ups to conquer increasingly challenging stages and bosses.

Merge towers to level up defensesThousands of enemy waves35+ unique enemy types
🎮 Games
(1.9K)
free with in-app purchases
20
Ammo Fever: Tower Gun Defense
Ammo Fever: Tower Gun Defense
Ammo Fever: Tower Gun Defense
Merge Bullets - Turret Defence
Free

Engage in thrilling base defense by merging ammo boxes to upgrade your firepower and take down waves of enemies. Upgrade your weapons and bullet rush to survive increasingly difficult attacks and become the ultimate defender.

Engaging base defense gameplayMerge ammo boxes to upgrade firepowerUpgrade weapons and fireline
🎮 Games
(55K)
free with in-app purchases