216+ iOS apps & games curated and reviewed
The best slime castle apps on iPhone average 4.5★ across 216+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.
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.
Command adorable Slimes in an epic idle RPG adventure. Collect loot, evolve heroes, and conquer stages through auto-battles, even offline. Rally your clan to defend your homeland in endless battles for rewards and glory.
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.
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.
Embody a cleaning slime to restore a flooded city. Earn currency by washing away dirt, collect items to power up, and upgrade your slime's abilities. Build a team of helper slimes to tackle various stages and become a cleaning legend.
Become a powerful wizard defending your castle from monster invasions. Use strategic spell-casting and upgrade your defenses to vanquish foes across diverse terrains. Embark on an epic quest to protect your kingdom from darkness.
Create and play with virtual slimes using realistic textures and ASMR sounds. Customize your slime with drawings and effects for a relaxing, antistress experience.
Create and play with realistic virtual slime on your screen. Design unique slimes, stretch them, add objects, and enjoy satisfying anti-stress gameplay. Earn in-game currency as you play.
Experience a realistic sensory paradise with this app. Stretch, squeeze, and poke virtual slimes, pop fidget toys, and enjoy relaxing sounds to reduce stress and unwind.
Create and play with your own virtual frozen jelly and slime. Mix ingredients, customize your creations, and enjoy satisfying sensory experiences to relieve stress. Features over 40 tools for endless fun and customization.
Embark on a 3D battle RPG adventure set in the world of That Time I Got Reincarnated as a Slime. Experience a new story, relive anime moments with full voice acting, and build your ideal nation. Engage in strategic 3D command-based battles with dazzling animations.
Grow your slime by consuming everything in sight, from small objects to entire cities. Battle giant bosses and explore diverse maps. Customize your slime with unique skins and decorations. Enjoy endless fun with offline play.
Create and play with hyper-realistic virtual slime. This app offers a unique ASMR experience for stress relief, allowing you to stretch, squish, and pop simulated slime. Customize your creations with a vast array of colors, textures, and decorations.
Become a mighty wizard defending a village from monsters and slimes. Upgrade gear, collect skills, and build an indestructible fortress to overcome endless challenges and boss battles. Embark on a tower defense journey.
Experience the satisfying world of slime creation and play without the mess. This app offers realistic simulations, DIY slime making, and a variety of interactive features for a relaxing and fun experience.
Engage in a variety of relaxing and fun offline games designed for stress relief. Explore diverse activities like chopping vegetables, cleaning stoves, and building burgers with immersive sound effects.
Engage in a 3D battle royale where you control a slime, absorbing everything in your path to grow larger. Devour opponents and the environment to climb the leaderboards and become the biggest slime.
Explore a vast collection of over 50 unique slimes, from classic to magical. Engage with realistic slime simulations, enjoying satisfying ASMR sounds and anti-stress effects. Stretch, smash, and squish your chosen slime without any mess.
Embark on an adventure to conquer diverse kingdoms by strategically destroying castles. Utilize powerful explosives and mystical spells to crash forts from various historical and fantasy eras. Experience physics-based fun as you aim to win and become a hero.
Create and customize your own virtual slime with various colors, textures, and decorations. Enjoy realistic ASMR sounds with every squish and stretch. Play a Pop It mode for stress relief and sensory satisfaction.