Best Td Games Idle

240+ iOS apps & games curated and reviewed

4.6 avg rating
20 free apps & games
Updated May 2026

Out of 240+ td games idle 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 Td Games Idle

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
The Tower - Idle Tower Defense#2

The Tower - Idle Tower Defense by Tech Tree Games LLC

Base defense, kill the enemy
Strong Contender
🎮 Games
4.2😐(19K ratings)
FreeAdsIn-App Purchases
#18in Games
The Tower - Idle Tower Defense screenshot 1
The Tower - Idle Tower Defense screenshot 2
The Tower - Idle Tower Defense screenshot 3
The Tower - Idle Tower Defense screenshot 4
The Tower - Idle Tower Defense screenshot 5
The Tower - Idle Tower Defense screenshot 6

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.

What We Love

  • 🚀 Slow but steady progression
  • 👍 No forced ads
  • 👍 Simple but engaging gameplay
  • 🎶 Calming music

Room to Improve

  • 🕰️ Extremely slow progression
  • 💰 Expensive upgrades and in-app purchases
  • 🐛 Bugs and crashes
Slime Castle: Idle TD RTS Game#3

Slime Castle: Idle TD RTS Game by AZUR INTERACTIVE GAMES LIMITED

Verteidige das Königreich!
Worth Considering
🎮 Games
4.9😐(8.4K ratings)
FreeAdsIn-App Purchases
Slime Castle: Idle TD RTS Game screenshot 1
Slime Castle: Idle TD RTS Game screenshot 2
Slime Castle: Idle TD RTS Game screenshot 3
Slime Castle: Idle TD RTS Game screenshot 4
Slime Castle: Idle TD RTS Game screenshot 5
Slime Castle: Idle TD RTS Game screenshot 6

Defend a magical forest from invading humans in this idle tower defense RPG. Enhance your slime hero's abilities, collect legendary gear, and utilize powerful skills to defeat waves of enemies. Rebuild and strategize to protect the slime kingdoms.

What We Love

  • 🚀 Fun and addictive gameplay
  • 👍 No forced ads
  • 🚀 Decent progression system
  • 🚀 Satisfying upgrade mechanics

Room to Improve

  • 💰 Predatory in-app purchases
  • 🐛 Progression walls and difficulty spikes
  • 🐛 Inconsistent update rollouts

More Td Games Idle apps to explore

4
Tiny Warriors Rush - Idle TD
Tiny Warriors Rush - Idle TD
Tiny Warriors Rush - Idle TD
Defend castle against waves
Free

Engage in a casual tower defense game with roguelike elements. Strategize by choosing warriors, upgrades, and bonuses to defend your castle against zombie hordes. Enjoy endless replayability with no penalties for losing and a focus on strategic customization.

Tower defense gameplayIdle roguelike elementsWarrior and upgrade selection
🎮 Games
(3.6K)
free with in-app purchases
5
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
6
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
7
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
8
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
9
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
10
Summoner's Greed: AFK Idle RPG
Summoner's Greed: AFK Idle RPG
Summoner's Greed: AFK Idle RPG
Summon Monsters & Defend Base
Free

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.

Summon dozens of monsters and towersDefend against endless waves of heroesUnique monster abilities and powers
🎮 Games
(128K)
free with in-app purchases
11
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
12
Planet Defense: Space TD game
Planet Defense: Space TD game
Planet Defense: Space TD game
Galactic TD Strategy
Free

Defend your home planet in this roguelike tower defense game. Build and upgrade defenses to fend off alien invaders. Experience deep strategy with unique playthroughs and unlockable sentinels.

Roguelike progression with randomized upgradesStrategic depth with unlockable sentinelsStunning visuals and atmospheric sound
🎮 Games
(2.2K)
free with in-app purchases
13
Dice vs Monsters: Roguelike TD
Dice vs Monsters: Roguelike TD
Dice vs Monsters: Roguelike TD
Tower Defense action awaits!
Free

Engage in a strategic tower defense battle blending dice mechanics and idle hero management. Assemble a team of unique heroes, each represented by a die, and utilize their special abilities to defend your kingdom against waves of monsters. Experience a roguelike adventure where strategy and luck determine your survival.

Strategic Tower DefenseIdle Hero ManagementDice Rolling Mechanics
🎮 Games
(11K)
free with in-app purchases
14
Ancient Allies Tower Defense
Ancient Allies Tower Defense
Ancient Allies Tower Defense
Strategy Castle & TD Game
Free

Defend Earth through the ages using modern weapons and historical allies against alien invaders. Strategize with diverse towers, upgrades, and unique historical figures across 125 maps. Experience a revolutionary flying platform mini-game and endless progression.

125 detailed maps26 unique towers with upgradesAlly with historical figures
🎮 Games
(84)
free with in-app purchases
15
Idle Hole
Idle Hole
Idle Hole
Most Satisfying Idle Game Ever
Free

This idle game offers a relaxing and addictive experience with simple swipe controls and impressive graphics. Players start small, consuming and expanding in a curved universe to grow their empire and accumulate vast in-game wealth.

Relaxing idle gameplayAddictive mechanicsEasy swipe controls
🎮 Games
(7.9K)
free with in-app purchases
16
Revolution Idle
Revolution Idle
Revolution Idle
Will you reach infinity?
Free

This idle game challenges players to multiply numbers and reach infinite heights by filling circles. Unlock new mechanics, boost multipliers, and automate actions for optimized progress. Compete with others on the leaderboard and earn achievements.

Multipliers and PrestigeReach Infinity and EternityAutomate actions
🎮 Games
(17K)
free with in-app purchases
17
Pocket Politics: Idle Money
Pocket Politics: Idle Money
Pocket Politics: Idle Money
Addicting Get Rich Clicker!
Free

Automate your political lobbies to earn idle cash and rise through the ranks. Invest your earnings to multiply profits and collect endorsements. Prestige to grow your empire and compete in events for multipliers.

Automate lobbies for passive incomeInvest idle cash to multiply profitsCollect politician endorsements
🎮 Games
(3.3K)
free with in-app purchases
18
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
19
Balls Defense - Idle TD
Balls Defense - Idle TD
Balls Defense - Idle TD
Incremental Tower Defense Game
Free

An incremental tower defense game that blends multiple genres for intense gameplay. Enjoy endless challenges with upgrades and boosts, all playable offline without ads.

Incremental tower defense gameplayGenre-blending mechanicsEndless gameplay
🎮 Games
(50)
free
20
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