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20+ Best Merge Tower Defense 3D Alternatives for iPhone (2026)

Merge Tower Defense 3D is F tier, #27 of the 27 tiered apps in merge defense games. Here is everything that competes with it on iPhone, in tier order.

All 26 alternatives, in tier order

  1. 1
    Free + IAP · ★ 4.8 · 17,125 ratings · score 94
    Free tower defense game: merge and upgrade towers to defend against enemy waves and bosses, solo or with friends.
  2. 2
    Free + IAP · ★ 4.4 · 374,677 ratings · score 94
    Free tower defense game where you collect units, build a deck, and play base defense, PvP and Co-Op modes.
  3. 3
    Free + IAP · ★ 4.6 · 73,422 ratings · score 93
    Free base defense shooter where a stickman merges ammo boxes with a machine gun to fire bigger bullets.
  4. 4
    Fortress MergeShigher tier
    Free + IAP · ★ 4.6 · 14,514 ratings · score 93
    Puzzle-merge defense game: merge and upgrade buildings to fight off waves of enemies attacking your home.
  5. 5
    Slime LegionAhigher tier
    Free + IAP · ★ 4.8 · 6,395 ratings · score 89
    Free Games app where players merge monsters, set up lineups and protect a castle from invading heroes.
  6. 6
    Free + IAP · ★ 4.8 · 3,878 ratings · score 88
    Tower defense game where merged vegetable defenders protect a farm from enemy waves, with idle harvesting and a.
  7. 7
    Free + IAP · ★ 4.5 · 2,581 ratings · score 86
    A roguelike tower defense game where you merge weapons and combine skills to defeat waves of monsters.
  8. 8
    Free + IAP · ★ 4.7 · 2,823 ratings · score 86
    Tower defense game where you merge and upgrade towers to defend against waves of enemies, with idle progression.
  9. 9
    Fort GuardianAhigher tier
    Free + IAP · ★ 4.3 · 8,545 ratings · score 85
    Tower defense game where you merge facilities, traps and turrets to defend a fort against endless enemy waves.
  10. 10
    Evo DefenseBhigher tier
    Free + IAP · ★ 4.7 · 14,029 ratings · score 83
    A free merge and evolve tower defense game where you summon, merge and enhance heroes to fend off monster waves.
  11. 11
    Free + IAP · ★ 4.5 · 3,750 ratings · score 83
    Free idle-base defense game where you merge weapon blocks on a grid to fight waves of enemies across different Eras.
  12. 12
    Free + IAP · ★ 4.6 · 6,187 ratings · score 79
    A free casual tower defense game where you merge and upgrade towers to conquer a planet with a sci-fi theme.
  13. 13
    Free + IAP · ★ 4.6 · 141,105 ratings · score 77
    A free Games app that mixes tower defense, merge mechanics and paintball shooting, where players merge towers and shoot.
  14. 14
    Free + IAP · ★ 4.3 · 9,290 ratings · score 75
    A castle defense game where you merge heroes and weapons, use relics and altar buffs, and fight in PvP arena duels and.
  15. 15
    Free + IAP · ★ 4.4 · 6,960 ratings · score 74
    Idle merge game where you combine plants into a squad that defends a garden from zombie monsters.
  16. 16
    Zombies vs. TowersChigher tier
    Free + IAP · ★ 4.6 · 24,988 ratings · score 69
    Tower defense game where you build, merge and upgrade towers to hold a wall against waves of zombies.
  17. 17
    Lucky Defense!Chigher tier
    Free + IAP · ★ 4.6 · 16,672 ratings · score 69
    A free luck-based tower defense game where units are summoned and merged by chance and monsters are defeated.
  18. 18
    Free download · ★ 4.7 · 22,027 ratings · score 68
    A tower defense game where players merge shooting towers to hold off waves of zombies, orcs, and alien enemies.
  19. 19
    Plants on FireChigher tier
    Free + IAP · ★ 4.8 · 3,008 ratings · score 68
    A free 3-minute PvP tower defense game where players merge quirky plants, build squads, and clash with opponents.
  20. 20
    GearPaw Defenders!Chigher tier
    Free + IAP · ★ 4.9 · 1,537 ratings · score 67
    Free game where you connect gears and fight monster invasions to defend a forest home, mixing in roguelike elements.
  21. 21
    Free + IAP · ★ 4.6 · 3,343 ratings · score 67
    A free idle roguelike game where you summon, merge and upgrade heroes to clear infinite stages, with in-app purchases.
  22. 22
    Merge Defense 3D!Dhigher tier
    Free + IAP · ★ 3.6 · 3,076 ratings · score 63
    Turn-based tower defense puzzle game: place defenders, merge them to upgrade, and survive advancing enemy blocks.
  23. 23
    Free + IAP · ★ 4.2 · 276,837 ratings · score 59
    Tower-defense game where you merge and level dice units to defend against boss monster waves, with PvP and co-op.
  24. 24
    Free + IAP · ★ 4.5 · 2,021 ratings · score 59
    Free tower defense game set in the Rush Royale world, with PvP arena battles, unit merging and land and air attacks.
  25. 25
    Free + IAP · ★ 4.3 · 4,683 ratings · score 51
    A free merge-and-defend game where you buy and combine soldiers to protect a treasure chest across levels.
  26. 26
    Free + IAP · ★ 3.2 · 81 ratings · score 51
    Tower defense game where you place defenders, merge matching ones to upgrade them, and survive advancing enemy blocks.

Questions people ask

What is the best alternative to Merge Tower Defense 3D on iPhone?
Merge Clash: Tower Defense, S tier, #1 in merge defense games.
Is there a free alternative to Merge Tower Defense 3D?
Yes: Merge Clash: Tower Defense (S tier, #1) is free to download, with in-app purchases.
Does anything rank above Merge Tower Defense 3D?
Yes. 26 apps rank above it in merge defense games: Merge Clash: Tower Defense (#1), Rush Royale: Tower Defense RPG (#2), Ammo Fever: Tower Gun Defense (#3) and more.

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