ISD: Idle Tower Defense
ISD: Idle Tower Defense Summary
ISD: Idle Tower Defense is a ad-supported, with in-app purchases Android app in Strategy by TeaEyes. Released in Aug 2025 (7 months ago). It has about 25.6K+ installs and 174 ratings with a 4.55★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 1.5K monthly active users and generates around $<10K monthly revenue (61% IAP / 39% ads). Store metadata: updated Mar 8, 2026.
Recent activity: 43 installs this week (3.7K over 4 weeks) showing steady growth , and 4.00 new ratings this week View trends →
Store info: Last updated on Google Play on Mar 8, 2026 .
4.55★
Ratings: 174
Screenshots
App Description
Server themed idle tower defense with endless waves of enemies and strategy.
Build and protect your own digital fortress in Idle Server Defender, a high-depth incremental tower defense game. Face off against relentless waves of viruses and malware as you optimize your server to become an impenetrable powerhouse.
Whether you are a casual fan of idle games or a hardcore strategy player, this game offers endless layers of optimization and math-based progression.
⚙️ Deep Progression Systems
The game is built around multiple layers of growth that keep every run feeling fresh and rewarding:
- In-Run Upgrades: Use Coins to boost your Attack, Defense, and Utility stats in real time.
- Module System: Spend Bits during your run to activate temporary, high-power Modules across different categories.
- Prestige Upgrades: Reset your levels to earn meta-currency and unlock big boosts in power.
- Gem Upgrades: Invest premium currency into specialized permanent stat boosts that never reset.
- Daemon Protocols: Unlock endgame systems that provide massive stat boosts based on your total gems and highest waves.
🛡️ Advanced Strategy & Loadouts
Customize your server with 20 unlockable slots to create the perfect build for your playstyle:
- Workers: Assign specialized bots to generate passive Coins, Bits, and Experience while you are active or offline.
- Downloads: Start timed background tasks that provide permanent bonuses once the download completes.
- Executables: Collect and merge rare drops from bosses to stack unique multipliers and rare rarities.
- Boost Cards: Equip powerful cards with 8 different rarity levels to multiply your stats.
- Mechanics: Tweak your game world with tools for Auto-Modules, Wave Time manipulation, and spawn rates.
📈 The Path to Mastery
Push through the breach and see how far your hardware can go:
- 10 Difficulty Cups: Master 10 different cups, each with 10 tiers of escalating rewards and 4x multipliers.
- System Weapons: Unlock high-tier weaponry like the Bit Vortex, Firewall, and Rate Limiter to decimate waves.
- Milestones & Challenges: Reach new heights to claim rewards and climb the global leaderboards.
- True Offline Progress: Your server stays productive even when the app is closed, earning resources for your next session.
🚀 Player Friendly Features
- No Forced Ads: Enjoy a clean experience with optional rewards that last twice as long.
- Auto Restart: Perfectly optimized for farming and grinding while you are away.
- Global Leaderboards: Compete for the highest tier achieved against players worldwide.
- Localized Support: Play the game in 10 different languages.
Download Idle Server Defender now and take control of your mainframe!