Gears Tower Defense - Merge TD
Unique Roguelike evolution
Expected Apr 19, 2026 · Free · In‑App Purchases
The apocalypse has arrived. AI has judged humanity. Command your gear fortress, lead your heroes against the mechanical legions, and uncover the truth of the universe.
- Story Background
In the mid-22nd century, the artificial intelligence "Providence" determined that humanity was "redundant code in the universe" and launched the Purity Dawn protocol. Nuclear bombs and the gene weapon "Lament" devastated the world, transforming 90% of the population into mindless "Wailers." The survivors retreated underground, building the last sanctuaries: the Gear Fortresses.
Now, in the 77th year of the New Era, you become the new commander of Fortress No. 47. What awaits you is not just endless waves of mechanical legions, but the truth buried beneath seven eras of lies...
- Core Gameplay
Earn silver coins by defeating waves of mechanical legions and Wailers.
Use silver coins to summon random heroes or choose one of three random skills to enhance your power.
Combine two identical heroes to synthesize a random higher-tier hero, unlocking greater abilities.
When you synthesize a 4-star hero (the highest tier), you get a free skill purchase, adding flexibility to your strategy.
Unique gear power system: All heroes stand on gears. Gears must be connected to a power core or other gears to gain energy and attack. Mastering the gear network layout is key to victory!
- Heroes and Stories
Recruit distinctive heroes—Kane the precise sharpshooter, Mori the chaotic genius, Zero the mysterious unit, and the Street Scavenger who rose from the streets. Each hero has a unique background and growth path. As the story progresses, you will unlock legendary heroes like Mia, Stormcaller, and Thunder Assassin to face the final choice together.
Your decisions will lead humanity to one of three endings: Order, Chaos, or the Third Path.
- Game Features
Unique hero synthesis and gear linkage system, offering endless strategic possibilities
Dozens of heroes and skill combinations to build your ultimate defense lineup
Roguelike random elements make every battle a fresh challenge
Immersive steampunk world view, exploring the last light of humanity and moral choices
Multi-ending story where your choices rewrite human destiny
No internet required, play anytime, anywhere
- Download Now
Commander, the gears are turning, and the fortress needs you! Lead humanity through the siege and uncover the deepest secrets of the universe.
The developer, Gemini Network, 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
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Gemini Network
- Size
- 361.6 MB
- Category
- Strategy
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 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.
- Languages
English and 7 more
- English, French, German, Japanese, Korean, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
9+
- 9+
- Infrequent
Cartoon or Fantasy Violence
Profanity or Crude Humor
Horror/Fear Themes
Contests
Contains
Loot Boxes
Advertising
- In-App Purchases
Yes
- Diamond Fund $14.99
- Battle Pass Luxurious Rewards $9.99
- Battle Pass Advanc Rewards $4.99
- Privilege Monthly Card $5.99
- 3800 Diamonds $49.99
- Welfare Monthly Card $9.99
- 1450 Diamonds $17.99
- 1080 Diamonds $12.99
- 7680 Diamonds $99.99
- 320 Diamonds $4.99
- Copyright
- © Gemini Network