Best Merge Defense Games

235+ iOS apps & games curated and reviewed

4.5 avg rating
20 free apps & games
Updated July 2026

Out of 235+ merge defense games apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Merge Defense Games

Fortress Merge#1

Fortress Merge by TapNation

Roguelike City Defend Game
Editor's Choice
🎮 Games
4.6😞(9.7K ratings)
FreeAdsIn-App Purchases
Fortress Merge screenshot 1
Fortress Merge screenshot 2
Fortress Merge screenshot 3
Fortress Merge screenshot 4
Fortress Merge screenshot 5
Fortress Merge screenshot 6

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.

What We Love

  • 👍 Huge game
  • 🚀 Smooth animations and aesthetics

Room to Improve

  • 🔥 Excessive ads, some up to 120 seconds long
  • 🐛 Bugs and glitches (e.g. level 46 issue, experience not earned after leveling up)
  • 💰 Monetization issues (e.g. no option to opt out of data collection)
Shooting Tower: Defense Game#2

Shooting Tower: Defense Game by Freeplay LLC

Merge guns and guard the base
Strong Contender
🎮 Games
4.7😞(16K ratings)
FreeAds
Shooting Tower: Defense Game screenshot 1
Shooting Tower: Defense Game screenshot 2
Shooting Tower: Defense Game screenshot 3
Shooting Tower: Defense Game screenshot 4
Shooting Tower: Defense Game screenshot 5

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.

What We Love

  • 🚀 Fast gameplay
  • 💡 Satisfying merging mechanics
  • 👍 Addictive and fun

Room to Improve

  • 🚫 Excessive ads
  • 🔁 Repetitive gameplay
  • 🐛 Bugs and crashes
Rush Royale: Tower Defense RPG#3

Rush Royale: Tower Defense RPG by MYGAMES MENA FZ LLC

PvP Card battle・Merge Strategy
Worth Considering
🎮 Games
4.5😐(94K ratings)
FreeAdsIn-App Purchases
#73in Games
Rush Royale: Tower Defense RPG screenshot 1
Rush Royale: Tower Defense RPG screenshot 2
Rush Royale: Tower Defense RPG screenshot 3
Rush Royale: Tower Defense RPG screenshot 4
Rush Royale: Tower Defense RPG screenshot 5
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

More Merge Defense Games apps to explore

4
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
5
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
6
Defense Game: Merge Battle
Defense Game: Merge Battle
Defense Game: Merge Battle
Defense Merge Survival Game
Free

Engage in strategic battles by merging and upgrading weapons to defend your room from waves of monsters. Command your defenses and defeat enemies in this intense tower defense experience.

Merge and upgrade weaponsDefend your roomDefeat waves of monsters
🎮 Games
(4)
free with in-app purchases
7
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)
8
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
9
Merge Gun: Tower Defense
Merge Gun: Tower Defense
Merge Gun: Tower Defense
Merge to defend
Free

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.

Merge and upgrade towersStrategic defense planningDefend against monster waves
🎮 Games
(1.1K)
free with in-app purchases
10
Merge Defense!
Merge Defense!
Merge Defense!
Merge Towers, Attack and Win!
Free

Engage in a strategic tower defense experience where you merge units to enhance their power and defend against advancing enemies. Collect resources to unlock upgrades and power-ups in this offline, turn-based challenge.

Merge defenders to upgrade powerTurn-based gameplayPlace defenders to protect from enemies
🎮 Games
(26)
free with in-app purchases
11
Top War: Battle Game
Top War: Battle Game
Top War: Battle Game
Build, Merge, Battle
Free

Lead your forces against a tyrannical legion in this strategy game. Merge units and buildings to instantly upgrade your power, recruit legendary heroes, and build a formidable base. Engage in global battles with alliances and dominate your enemies.

Merge to upgrade gameplayInstant upgradesRecruit Legendary Heroes
🎮 Games
(104K)
free with in-app purchases
12
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
13
Kingdom Guard:Tower Defense TD
Kingdom Guard:Tower Defense TD
Kingdom Guard:Tower Defense TD
Defend Your Kingdom!
Free

Defend your kingdom from invading titans by training and merging soldiers to create powerful units. Protect a legendary dragon egg to save the world and achieve ultimate glory. Engage in strategic battles and form alliances to become the supreme lord.

Merge units to upgradeTower defense gameplayStrategic unit placement
🎮 Games
(49K)
free with in-app purchases
14
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
15
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
16
Merge Legions: War Battle Game
Merge Legions: War Battle Game
Merge Legions: War Battle Game
Match & fight epic monsters
Free

Engage in a casual fantasy adventure where you merge units to build a powerful army. Strategically combine soldiers, armor, and more to defend your village and conquer enemies in tactical battles. Discover new combinations and complete quests for rewards.

Merge units to create stronger warriorsTactical resource managementDiverse troop types (swordsmen, orcs, mages)
🎮 Games
(4.1K)
free with in-app purchases
17
Combo Clash - Era Wars
Combo Clash - Era Wars
Combo Clash - Era Wars
Merge Weapons. Battle Waves.
Free

Merge weapons on a grid to boost firepower and battle waves of enemies. Evolve your hero and unlock weapons from different time periods to defend against diverse foes. Gather loot to strengthen your character and conquer every era.

Merge blocks to boost firepowerEvolve your characterUnlock weapons from different Ages
🎮 Games
(2.8K)
free with in-app purchases
18
Merge Plants - Monster Defense
Merge Plants - Monster Defense
Merge Plants - Monster Defense
Grow plants to attack Zombies
Free

Grow and merge powerful plants to defend your garden from waves of attacking zombies. Strategically place your plants, upgrade their abilities, and unleash their attacks to stop the monster invasion before they reach your house. This idle game allows for progress even when you're not actively playing.

Merge plants to unlock new cropsDefend garden from zombie wavesIdle gameplay for progress while sleeping
🎮 Games
(2K)
free with in-app purchases
19
Archer Forest : Idle Defense
Archer Forest : Idle Defense
Archer Forest : Idle Defense
Merge arrows to upgrade archer
Free

Merge arrows to upgrade your archer and defend the forest. Explore vast continents, battle bosses for rewards, and collect unique animal heroes with special abilities. Enjoy simple tap-and-merge gameplay for speedy growth and endless content.

Merge arrows to upgrade archersExplore diverse continentsTap-based gameplay
🎮 Games
(11K)
free with in-app purchases
20
AmaZeus: Merge & Shoot
AmaZeus: Merge & Shoot
AmaZeus: Merge & Shoot
Roguelike tower defense!
Free

Defend the world from monster waves by merging weapons to unlock powerful upgrades. Experiment with unique skill combinations to unleash devastating effects and overcome challenging stages. Save the world with strategic combat and simple controls.

Merge shooters to power upDefeat waves of monstersStrategic skill combinations
🎮 Games
(1.5K)
free with in-app purchases