Best Merge Tower Defense 2021 alternatives: games like Merge Tower Defense 2021

10+ similar games compared and reviewed

4.5 avg rating
10 free games
Updated October 2026

Whether you want more options like Merge Tower Defense 2021 or a completely different take on the same concept, our curated list of 10+ similar apps and games has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to Merge Tower Defense 2021

Tower Defense: Toy War 2#1

Tower Defense: Toy War 2 by Pham Quang

Defend your kingdom now
Editor's Choice
🎮 Games
4.3(44 ratings)
FreeAdsIn-App Purchases
Tower Defense: Toy War 2 screenshot 1
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Tower Defense: Toy War 2 screenshot 6

Engage in a classic tower defense strategy game set in WW1/WW2-inspired battles. Command your army against invading forces, build strategic towers with modern weaponry, and defend your kingdom across diverse terrains. Experience intense warfare and become an ingenious commander.

Tower Maze Defense#2

Tower Maze Defense by Paperboi data management, llc

Build defense tower mazes.
Strong Contender
🎮 Games
4.4😐(149 ratings)
FreeAdsIn-App Purchases
Tower Maze Defense screenshot 1
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Build strategic tower mazes to defend against waves of enemies in this unique tower defense game. Explore an old-school setting with trippy music, upgrade towers, and utilize shaman powers. Choose from three difficulty modes to enjoy the story or test your strategic limits.

What We Love

  • 👍 Old-school TD fun
  • 👍 Challenging gameplay
  • 👍 Addictive and entertaining
  • 👍 Great strategy game
  • 👍 Good art and gameplay
  • 👍 Reasonable price
  • 👍 Captivating pace
  • 👍 Good story for a TD game
  • 👍 Engaging and complex strategy
  • 👍 Fun for puzzle lovers

Room to Improve

  • 🐛 Buggy lightning tower
  • 🐛 Shop resets frequently
  • 🐛 Endless mode formatting issues
  • 🐛 Cannot see entire map in endless mode
  • 🐛 Limited story runs
  • 🐛 Limited endless runs
  • 🐛 Paywall for endless content
  • 🐛 Game is too short
  • 🐛 Limited long-term goals
  • 🐛 Cannot build on top row in endless mode (iPhone 15)
  • 🐛 Makes you pay to play more
Battle Strategy: Tower Defense#3

Battle Strategy: Tower Defense by Zygle Ltd

Elevate Your Tactical Genius
Worth Considering
🎮 Games
4.7😐(3.4K ratings)
FreeAdsIn-App Purchases
Battle Strategy: Tower Defense screenshot 1
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Engage in a challenging military-style war game where you must protect your base using tactical tower defense. Plan your strategy, upgrade weapons, and destroy incoming enemies to defend your tower and territory.

What We Love

  • 🎮 Excellent tower defense gameplay
  • 💡 Challenging and strategic
  • 👍 Easy to learn, hard to master
  • 🎨 Simple and elegant design

Room to Improve

  • 💰 Overly monetized with excessive ads and in-app purchases
  • 🤯 Difficulty spikes too sharply, requiring paid upgrades
  • 🚫 Inability to disable ads even after purchase
  • 🐛 Bugs and glitches, especially with new content updates

More games like Merge Tower Defense 2021

4
Undead Siege: Tower Defense
Undead Siege: Tower Defense
Undead Siege: Tower Defense
by Whitedot Games
Free

Strategize to defeat waves of zombies and bosses by selecting and upgrading troops. Merge soldiers to create powerful units and build your ultimate squad. Challenge players globally in this thrilling survival adventure.

Zombie and boss battlesTroop selection and formationHero collection and upgrades
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free with in-app purchases
5
Air Defense-TDS
Air Defense-TDS
Air Defense-TDS
by GameAtom
Free

Command anti-air defenses in an intense tower defense shooter. Battle waves of hostile aircraft using intuitive swipe controls, unlock powerful skills, and face challenging aerial bosses. Progress through diverse missions and dynamic battlefields, even offline.

Intuitive swipe controlsEpic boss battlesSkill upgrades
🎮 Games
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free with in-app purchases
6
Rail Defence
Rail Defence
Rail Defence
Defend castle on a round way!
Free

Defend your castle from waves of enemies by strategically placing and upgrading weapons on a circular railway. Utilize special powers and enhanced armaments to repel increasingly formidable foes and protect your stronghold.

Circular railway defenseAcquire new weaponsUpgrade weapons
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7
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
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8
Pill Fortress
Pill Fortress
Pill Fortress
by Voodoo
Free

Defend your fortress against waves of viruses in this immune-themed base defense game. Strategically place and upgrade unique pill defenders to overcome evolving viral threats. Enjoy kid-friendly gameplay with vibrant 2D graphics.

Dynamic pill placementEvolving viral threatsUnlock new pill characters
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9
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
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10
Galactic Merge Idle
Galactic Merge Idle
Galactic Merge Idle
Incremental Idle
Free

Build an interstellar production empire by strategically merging ships and upgrading your galactic circuits. Earn coins as ships travel, then reinvest to unlock new lines, acquire more vessels, and evolve them into powerful income generators. Complete missions to unlock advanced circuits and scale your space economy.

Incremental idle gameplayShip merging and evolutionCircuit upgrades for efficiency
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ad-supported