Perimeter

Contains adsIn-app purchases
Content rating
Everyone
5K+
Downloads
Content rating
Everyone
In-Game Purchases (Includes Random Items)
Learn more
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About this game

Perimeter is a mix of Idle Tower Defense and Factory Automation.

Defend your core against endless waves of aliens while building an industrial factory. Lay conveyor belts, automate production, manage your power grid, and upgrade your tower to survive as long as you can!

Features:
- Defend against the waves of aliens and upgrade your tower almost infinitely!
- Build your own Factory, connect transport belts, plan assembly lines, manage energy production, and optimize production!
- Build Turrets to defend your perimeter!
- Get unique items with unique skills to specialize your tower!
- Purchase powerful super weapons to further enhance your survivability!
- Get new skins & backgrounds through playing the game or buying
- Research technologies to enhance your power even more!
- Get Power Cards to scale up your base stats even more!
- Compete in Leaderboards and Weekly Tournaments!
- No GUI and Screen Saver/Battery Saver modes to watch the battle clutter-free, save power, and protect your OLED screen!

Roadmap:
- More Upgrades & Lab researches
- More skins & backgrounds
- Even more Factory Turrets and Buildings
- Petrol Expansion
- Events section to provide "permanently" purchasable events (with in-game currency) so that you don't have to complete them in a limited time

Socials:
- Discord: https://discord.gg/dzpsaGjPqs
- X: https://x.com/Shield_Arc
- Email: shieldarcofficial@gmail.com

Privacy Policy: https://shieldarc.dev/privacy
Infinite Tower Defense & Factory Building
Updated on
Oct 9, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Device or other IDs
  • This app may collect these data types
    Device or other IDs
  • Data is encrypted in transit

What’s new

• Rebalanced tower health scaling past level 100 to eliminate runaway late-game invulnerability while preserving early-game progression.
• Fixed permanent Scrap health upgrade math to properly grant full base health per level.
• Factory blueprints now correctly calculate costs based on existing buildings in your factory.

Join our Discord: https://discord.gg/dzpsaGjPqs
Content rating
Everyone
In-Game Purchases (Includes Random Items)
Learn more

App support

About the developer
Yiğit Budur
shieldarcofficial@gmail.com
Yeşilpınar Mah. Papağan Sk. No:22 Daire: 5 34065 Eyüp/İstanbul Türkiye

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