Random Defense
Summon, merge, and defend!
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Welcome to the Ultimate RNG Hero Merge Defense!
Step onto the battlefield where strategy meets pure excitement! Summon powerful champions, merge them into legendary warriors, and defend against relentless swarms of monsters in fast-paced tactical tower defense battles.
Do you have the wits to master RNG luck and tactical positioning to overcome epic bosses?
---------------------------------------------------
CORE GAMEPLAY FEATURES
---------------------------------------------------
SUMMON & TACTICAL MERGE
• Summon heroes onto the 4x4 combat grid using gold earned in battle.
• Combine identical units to evolve them into higher star tiers with devastating combat power!
• Discover dynamic hybrid roulette merges when combining units of matching dimensions!
9 UNIQUE HEROES & 5 ELEMENTAL DIMENSIONS
Command a diverse roster of 9 champions representing 5 primal elements:
• Fire: High AoE burst damage that incinerates enemy swarms.
• Ice / Frost: Chilling crowd control that freezes and slows down fast runners.
• Nature: Armor-piercing thrusts and poison damage.
• Stone / Rock: Colossal crushing impact that stuns massive foes.
• Beast: Swift multi-strike slashes and lethal critical strikes.
DEEP COMBAT STRATEGY: SIZE VS ATTACK TYPE
Inspired by classic tactical RTS mechanics, damage calculations reward smart positioning:
• Concussive: 100% damage vs Small enemies (Speed runners & swarms).
• Explosive: 100% damage vs Large & Epic Bosses.
• Normal: 100% reliable damage against all enemy unit types!
20 INTENSE WAVES & 4 EPIC BOSS ENCOUNTERS
• Each stage pits you against 20 handcrafted waves of escalating danger.
• Every 5 waves, face terrifying stage bosses with massive health pools and unique traits.
• Keep your monster count under the 60-cap threshold, or suffer total defeat!
DYNAMIC STAGE ENVIRONMENTS
Battle across immersive chapters featuring unique environmental modifiers:
• Chapter 1: Volcanic Plains — Balanced proving grounds.
• Chapter 2: Frozen Peaks — Monsters move faster across the icy terrain (+20% Move Speed).
• Chapter 3: Iron Bastion — Armored behemoths dominate the wave (+30% Monster Armor).
• Chapter 4: Shadow Abyss — Chaotic swarm battles with double the monsters at lower HP.
HERO PROGRESSION & UPGRADES
• Collect Hero Cards from chests and daily deals to unlock permanent stat boosts.
• Level up your heroes from Lv.1 to Lv.15 to unlock specialized mastery passives, extra critical chance, and size-breaker perks.
CASUAL, FAST-PACED, & REWARDING
• Instant pick-up-and-play sessions lasting 3 to 5 minutes.
• Seamless 1.5x Battle Speed boost for high-octane action.
• 100% fair progression designed around player skill and rewarded bonuses—no aggressive paywalls!
---------------------------------------------------
HOW TO PLAY
---------------------------------------------------
1. Tap the Summon Button to spawn random heroes on the grid.
2. Drag and merge matching heroes to upgrade their Star Tiers.
3. Position your units strategically along the monster path.
4. Eliminate all 20 waves and vanquish the final boss to claim victory!
Download now and prove your tactical mastery in the ultimate Random Defense arena!
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Dongsik Son, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Dongsik Son
- Size
- 205.9 MB
- Category
- Strategy
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Frequent
Cartoon or Fantasy Violence
Guns or Other Weapons
Infrequent
Realistic Violence
Contains
Loot Boxes
Advertising
- Copyright
- © 2026 Dongsik Son
