CyberTower | Tower Defense Android App with AdMob

CyberTower | Tower Defense Android App with AdMob is a native Android game built with Kotlin and Jetpack Compose. The project features dynamic grid pathfinding, multiple defense towers, tech tree upgrades, dual-track audio, Google User Messaging Platform (UMP) GDPR consent, and integrated Google AdMob monetization.

The application supports Android 16 (Target SDK 36 & Compile SDK 36) complying with Google Play’s latest requirements and follows modern Android development standards using MVVM architecture, StateFlow, and Kotlin Coroutines.

Architecture Overview

• Core Game Engine: Deterministic combat simulation loop on Dispatchers.Default managing dynamic grid pathfinding, enemy wave spawning, tower targeting, and sub-stepped projectile physics.
• ViewModel State Layer: MVVM bridge exposing an immutable StateFlow that coordinates player inputs, audio events, and match save/resume state.
• Declarative Compose UI: Material 3 interface with an optimized Compose Canvas for smooth grid, tower, projectile, and damage text particle rendering.

Features

• Native Architecture: Built entirely with Kotlin and Jetpack Compose without third-party game engines.
• Dynamic Maze Pathfinding: Real-time route recalculation when towers are placed or sold.
• 5 Tower Types:
  • Pulse Laser: High fire-rate directed energy beam.
  • Gauss Cannon: Heavy armor-piercing kinetic projectile weapon.
  • Cryo Emitter: Area slowing field with speed reduction.
  • Tesla Coil: Chain lightning multi-target damage.
  • Plasma Mortar: Long-range area explosive artillery.
• 5 Enemy Types: Scout, Swarm, Shielded, Tank, and Boss Titan units.
• Tech Tree Upgrades: 8 upgrade tracks with up to 10 progression levels each.
• Audio System: Asynchronous sound effects and synthwave soundtrack with automatic lifecycle synchronization.

Google AdMob & UMP GDPR Monetization

• Google UMP Consent: Full GDPR/EEA consent gathering with user-accessible “Privacy Options” in settings.
• Adaptive Banner Ads: Positioned on main screens with dynamic sizing and zero empty placeholder gaps.
• Interstitial Ads: Triggered on sector selection and game over with configurable counter and cooldown pacing.
• Rewarded Video Ads: Option to claim bonus Tech Cores with reward granted upon ad completion.
• Central Configuration: All ad unit IDs and pacing controls are managed in a single configuration file (AdsConfig.kt).
• No-Ads Build Option: Toggle isAdsEnabled = false in AdsConfig.kt to produce an ad-free version.