Best Idle Monster Td Apps & Games

208+ iOS apps & games curated and reviewed

4.7 avg rating
20 free apps & games
Updated July 2026

Whether you're new to idle monster td or looking for an upgrade, our curated collection of 208+ iOS apps and games has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Idle Monster Td

Idle Monster TD#1

Idle Monster TD by Swell Games LLC

Battle endless evil robots!
Editor's Choice
🎮 Games
4.7😊(2.5K ratings)
FreeAdsIn-App Purchases
Idle Monster TD screenshot 1
Idle Monster TD screenshot 2
Idle Monster TD screenshot 3
Idle Monster TD screenshot 4
Idle Monster TD screenshot 5
Idle Monster TD screenshot 6

Defend your monster homeland from invading robots in this unique tower defense game. Strategically deploy a variety of monsters with unique skills and elements to stop the mechanical onslaught. Upgrade your defenses and unlock new creatures as you progress through endless waves of enemies.

What We Love

  • 🚀 Great game
  • 👍 Addictive gameplay
  • 🎨 Cute art style
  • 💰 Free-to-play friendly

Room to Improve

  • 💰 Expensive in-app purchases
  • 🐢 Slow progression at higher levels
  • 🔋 Requires constant screen time
Idle Monster TD: Tower Defense#2

Idle Monster TD: Tower Defense by Monstermob Usa, Inc.

Evolve Epic Monsters and Fight
Strong Contender
🎮 Games
4.7😞(805 ratings)
FreeAdsIn-App Purchases
Idle Monster TD: Tower Defense screenshot 1
Idle Monster TD: Tower Defense screenshot 2
Idle Monster TD: Tower Defense screenshot 3
Idle Monster TD: Tower Defense screenshot 4
Idle Monster TD: Tower Defense screenshot 5
Idle Monster TD: Tower Defense screenshot 6

Build a team of evolving monsters to defend your portal from endless waves of human invaders. Strategize monster placement and utilize powerful abilities in this idle tower defense RPG. Collect resources, unlock new creatures, and compete in PvP tournaments.

What We Love

  • 🚀 Good game mechanics
  • 👍 Easy to understand
  • 👍 Enjoyable gameplay
  • 👍 Decent graphics

Room to Improve

  • 🐛 Tournaments no longer running
  • 🐛 Connectivity issues
  • 🐛 Losing progress/save data
Summoner's Greed: AFK Idle RPG#3

Summoner's Greed: AFK Idle RPG by PIXIO LIMITED

Summon Monsters & Defend Base
Worth Considering
🎮 Games
4.9😊(128K ratings)
FreeAdsIn-App Purchases
Summoner's Greed: AFK Idle RPG screenshot 1
Summoner's Greed: AFK Idle RPG screenshot 2
Summoner's Greed: AFK Idle RPG screenshot 3
Summoner's Greed: AFK Idle RPG screenshot 4
Summoner's Greed: AFK Idle RPG screenshot 5
Summoner's Greed: AFK Idle RPG screenshot 6

Defend your stolen treasure from an invading army of heroes in this idle tower defense game. Summon a variety of monsters and cast powerful spells to obliterate your enemies. Strategically place towers and upgrade your defenses to survive endless waves.

What We Love

  • 🚀 Addictive and fun gameplay
  • 👍 Charming and unique visuals
  • 🔓 No forced ads or in-app purchases
  • 💰 Generous rewards for idle playtime

Room to Improve

  • 🐢 Slow progression and wave clearing
  • 🔁 Repetitive gameplay and lack of variety
  • 🤕 Difficulty spikes can feel unfair

More Idle Monster Td apps to explore

4
Idle Heroes - Idle Games
Idle Heroes - Idle Games
Idle Heroes - Idle Games
Play Different, Go Idle!
Free

Assemble and train a powerful squad of heroes in this idle RPG. Your heroes train automatically while you're away, gaining new abilities and becoming stronger. Explore dungeons, battle darkness, and compete in global arenas and guild wars.

Idle hero trainingHero collection and evolutionStrategic team building
🎮 Games
(107K)
free with in-app purchases
5
Idle Hero TD Tower Defense RPG
Idle Hero TD Tower Defense RPG
Idle Hero TD Tower Defense RPG
Monster Strategy Base Defender
Free

Assemble a team of heroes to build an unstoppable defense against monster waves. This game blends idle strategy, tower defense, and fantasy RPG elements, allowing your heroes to fight and grow even while offline. Experiment with hero synergies and upgrades for deep strategic progression.

Idle tower defense gameplayHero recruitment and upgradesStrategic team building
🎮 Games
(999)
free with in-app purchases
6
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
7
Idle Fortress Tower Defense
Idle Fortress Tower Defense
Idle Fortress Tower Defense
Build your own Fortress.
Free

Build a powerful fortress and upgrade its defenses to withstand waves of monsters. Reset your stats after each round to earn more gold and enhance your base for further progress. Discover new worlds and utilize powerful cards to become a great general.

Build and upgrade a strong baseResist monster attacksEarn gold to upgrade stats
🎮 Games
(1.6K)
free with in-app purchases
8
Idle Hero TD
Idle Hero TD
Idle Hero TD
Battle endless evil monsters!
Free

Command a team of heroes in this fantasy tower defense game to stop monsters from reaching the treasure. Earn resources by defeating foes, then tap to upgrade your heroes and place them strategically. Enjoy idle gameplay with offline gold earnings and engage in PvP tournaments.

Epic Tower Defense battlesIdle TD gameplay with clicker mechanicsOffline gold earnings
🎮 Games
(1.1K)
free with in-app purchases
9
Boom Castle: Tower Defense TD
Boom Castle: Tower Defense TD
Boom Castle: Tower Defense TD
Idle Tower Defense TD Survival
Free

Defend your castle against endless waves of enemies in this roguelike idle tower defense game. Assemble heroes, strategically place towers and traps, and upgrade your defenses to survive brutal hordes. Master tactical gameplay and unleash devastating abilities to protect your stronghold.

Roguelike idle tower defenseAssemble and upgrade diverse heroesStrategic tower and trap placement
🎮 Games
(8.4K)
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
Wild Sky TD:Tower Defense Coop
Wild Sky TD:Tower Defense Coop
Wild Sky TD:Tower Defense Coop
Defend Your Fantasy Kingdom
Free

Engage in real-time strategy tower defense with over 250 collectible cards for towers, heroes, and spells. Explore diverse fantasy and steampunk settings across 1,500+ levels. Enjoy PvE, co-op raids, tournaments, and PvP modes.

250+ collectible tower, hero, and spell cards1,500+ handcrafted levelsStunning 3D graphics
🎮 Games
(748)
free with in-app purchases
12
Nature Strikes Back TD
Nature Strikes Back TD
Nature Strikes Back TD
Merge to Defend Nature!
Free

Defend the Heart of Nature by merging powerful guardian spirits to fight off an invading pollution army. This game combines merge, tower defense, and idle mechanics for a unique fantasy experience.

Merge and unlock 70+ guardian spiritsDefend against waves of pollution enemiesBattle boss Muckmares
🎮 Games
(783)
free with in-app purchases
13
Bloons TD Battles 2
Bloons TD Battles 2
Bloons TD Battles 2
Competitive Tower Defense
Free

Engage in thrilling head-to-head tower defense battles. Choose powerful heroes and a variety of monkey towers to outmaneuver opponents in real-time matches. Compete across dynamic maps and customize your loadout to achieve victory.

Head-to-head PvP tower defensePowerful Heroes with unique abilities22 Monkey Towers with upgrade paths
🎮 Games
(46K)
free with in-app purchases
14
Dragon Fever TD
Dragon Fever TD
Dragon Fever TD
Roguelike Casual TD Game
Free

Lead your squad to defend against endless monster waves and a mighty dragon in this roguelike tower defense game. Assemble a hero squad with unique abilities, strategically position them, and combine random skills for unique battle styles. Earn resources offline for easy, fast-paced gameplay.

Roguelike upgrades and random skillsAssemble and position hero squadsFast-paced tower defense action
🎮 Games
(880)
free with in-app purchases
15
Idle Defense: Dark Forest
Idle Defense: Dark Forest
Idle Defense: Dark Forest
TD Strategy Game
Free

A young wizard, banished for a mistake, must defend his home from monsters unleashed by a shattered seal. Utilize a variety of towers, elemental skills, and ancient demons to protect the world from chaos.

10+ tower typesTower upgrades and evolutionElemental skills
🎮 Games
(2.5K)
free with in-app purchases
16
Idle Defense Octopus Evolution
Idle Defense Octopus Evolution
Idle Defense Octopus Evolution
Mutant Monster Defence Games
Free

Evolve a mutant octopus by collecting DNA and gems to unlock new arms and super weapons. Defend against enemies with easy-to-learn touch controls and enjoy cartoon graphics with rock music. Share your progress and discover new features in this unique tower defense experience.

Evolve mutant octopus with new arms and weaponsEasy touch-and-hold gameplayCartoon graphics and rock music
🎮 Games
(1.9K)
free with in-app purchases
17
Cat'n'Robot: Idle Defense
Cat'n'Robot: Idle Defense
Cat'n'Robot: Idle Defense
Grow your cat army
Free

Command a growing army of cat warriors and powerful robots to defend your kingdom from monsters. Strategize with unique gadgets, mighty heroes, and various unit types to overcome epic battles and reclaim castles. Engage in online PvP, clan wars, and challenging quests.

Unique gadgets with special abilitiesUpgradeable archers and mighty heroesDiverse creeps and bosses to defeat
🎮 Games
(1.8K)
free with in-app purchases
18
Grow Turret TD idle
Grow Turret TD idle
Grow Turret TD idle
Idle Defense Clicker
Free

Engage in an idle defense clicker game where you tap to defeat enemies with your tower. Craft diverse turrets, utilize various skills, and upgrade your battle car for enhanced power. Progress through stages, defeat bosses, and stop zombie attacks in this offline pixel art adventure.

Auto attack without touchingCraft and collect various turretsUtilize various skills
🎮 Games
(197)
free with in-app purchases
19
Eternal Cannon Idle Shooting
Eternal Cannon Idle Shooting
Eternal Cannon Idle Shooting
A Casual Tower Defense Game
Free

Defend your city by strategically upgrading cannons and walls. Unleash powerful skills and combinations to defeat waves of enemies in this engaging idle tower defense game. Compete with players worldwide in real-time rankings.

Dozens of upgrade projects with unique skillsUpgradeable walls with damage reflectionTransformable cannon with multiple firing modes
🎮 Games
(4.8K)
free with in-app purchases
20
Monster Tiles TD: Tower Wars
Monster Tiles TD: Tower Wars
Monster Tiles TD: Tower Wars
Build, Battle, Evolve & Defend
Free

Design your own tower defense maze by strategically placing randomly generated tiles. Evolve over 35 unique monster tower types, equip them with gear, and unlock powerful upgrades to defend against diverse enemies. Enjoy endless replayability with dynamic base-building and multiple game modes.

Build custom tower defense mazesEvolve over 35 monster tower typesRoguelike progression and upgrades
🎮 Games
(213)
free with in-app purchases

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