Circuit Defense: Tower TD
Offline Roguelike Strategy
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Build towers, combine modules and watch small choices turn into explosive chain reactions. Every run is a new level. How long can your reactor hold?
Defend the reactor. Break the rules. Every run is a brand-new level.
Circuit Defense is a fast, strategic roguelite tower defense. Enemies pour in from glowing portals toward the reactor at the heart of the grid. Build towers, collect modules and turn small choices into chain reactions that wipe out entire waves.
A NEW LEVEL EVERY RUN
Portals, enemy waves and mutations are generated fresh each time, so no two runs play the same. Start by picking one of three starter kits — a tower plus a bonus module that sets the direction of your build — then adapt to whatever the level throws at you.
BUILD COMBOS, NOT JUST TOWERS
Three towers, seven modules and countless combinations:
• Gun – rapid single-target fire
• Cannon – heavy area blasts
• Frost – slows everything it touches
Equip modules to change how a tower fights: Rapid Fire, Pierce, Ricochet, Explosion, Freeze, Mark and Shatter. On their own they help. Together they explode:
• Frost + Shatter – slowed enemies burst into icy shards
• Pierce + Explosion – one shot, many kills, many blasts
• Rapid Fire + Mark – stack vulnerability in seconds
• Ricochet + Freeze or Mark – spread effects through the crowd
Level a tower up to unlock a second module slot, and find a Socket to give it a third.
CHOOSE YOUR UPGRADES
After every wave, pick one of three rewards: a new module, a stronger version of one you own, a Socket, a Build Permit or a Supply Drop. Rare cards boost a single module copy for even bigger plays.
SURVIVE THE MUTATIONS
Acceleration makes enemies faster but weaker. Overload makes your towers hit harder but fire slower. Read the warning, adjust your build, hold the line.
WIN AT WAVE 10 — THEN GO ENDLESS
Clear 10 waves to secure the reactor. Or keep going: in Endless the battlefield expands from 5×5 all the way to 16×16, your tower limit grows, new portals open and the enemies never stop getting tougher. How far can your build go? Pinch to zoom and pan across the larger battlefield.
POWER UP YOUR CORE
Beating wave 10 earns Core Components. Equip up to three of 12 components for small bonuses in your next run: extra reactor HP, starting gold, attack speed, stronger explosions, longer slows and more. Duplicates turn into Core Fragments you can spend on the components you want.
DISCOVER EVERY SYNERGY
Track seven signature combinations in the Synergy Collection. Each one unlocks only when it actually fires in battle.
YOUR HISTORY, YOUR RECORDS
Every run is saved with its result, best tower and modules. Star your favorite levels and replay them anytime. Chase your Best Wave, total enemies defeated and victories.
DESIGNED FOR QUICK SESSIONS
• Short, satisfying runs
• Pause and speed-up controls
• Clear wave reports showing what dealt the damage
• Haptic feedback and Reduce Motion support
• Play offline — no account needed
One more run. This time, Frost and Shatter on the same corner.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Mikhail Sterlikov, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Mikhail Sterlikov
- Size
- 21.1 MB
- Category
- Strategy
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Mikhail Sterlikov