Kristalis: Tower Defense
Survivor x Roguelike Strategy
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Defend your crystal, merge your towers, outlast 20+ unique bosses. A new arena every level — climb the endless-mode leaderboard.
KRISTALIS - Core Defense
Protect the crystal core against endless waves of monsters! Kristalis blends tower defense and survivor action: control your hero directly with a touch joystick while building and fusing towers around the core.
HOW TO PLAY
- Move your hero with one thumb - attacks are automatic
- Earn gold from every kill and build towers during battle
- Drag two matching towers together to FUSE them into stronger forms
- Choose a roguelike upgrade every time you level up in a run
- Survive the timer, defeat elite monsters and epic bosses
7 TOWER TYPES + FUSIONS
Arrow, cannon, frost, tesla, flame, laser and support towers - each with unique fusion combos and upgrade paths.
GROW YOUR HERO
- Level up your hero and spend talent points on attack, health, speed and crit
- Equip weapons, helmets and armor found in chests
- Weapons carry unique effects: shield block, dodge, slow, arcane echo, stun
- Merge duplicate gear into higher rarities
WORLDS AND EVENTS
Advance through regions with rising difficulty, random world events, elite hunts and boss arenas. Endless mode tests how long you can survive.
FAIR AND OFFLINE-FRIENDLY
- Play offline - your progress is saved on your device
- Optional rewarded ads (watch only if you want)
- Optional in-app purchases and a premium upgrade
- Turkish and English language support
Defend the core. Fuse your towers. Become the last line of defense!
2x SPEED SUBSCRIPTION
- Optional monthly subscription that doubles game speed.
- Renews automatically unless canceled at least 24 hours before the current period ends.
- Manage or cancel anytime in your App Store account settings.
Terms of Use (EULA): https://kristalis.iodigitalstudio.com/en/terms.html
Privacy Policy: https://kristalis.iodigitalstudio.com/en/privacy.html
Support: https://kristalis.iodigitalstudio.com/en/support.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Weekly Deal: a special bundle offer in the Shop, once per week
• Rate Us: share your feedback right from Settings
• Audio fix: music and sounds now recover correctly after returning from background
• Minor bug fixes and performance improvements
The developer, ismail Ozturk, 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- ismail Ozturk
- Size
- 44.1 MB
- Category
- Strategy
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - iPad
Requires iPadOS 16.4 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
Contests
Guns or Other Weapons
Contains
Loot Boxes
Advertising
User-Generated Content
- In-App Purchases
Yes
- Fast Forward $0.99
- Large Gold Pack $5.99
- Medium Gold Pack $2.99
- Small Gold Pack $0.99
- Large Gem Pack $5.99
- Medium Gem Pack $2.99
- Small Gem Pack $0.99
- Premium Pass $6.99
- Copyright
- © 2026 iO Digital Studio