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Defend a microscopic world: 18 tower types, 10 bosses and guardian Immuno. Free Android tower defense with ads and optional purchases.
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Screenshot 1 for Bio Defence
Screenshot 1 for Bio Defence
Screenshot 2 for Bio Defence
Screenshot 3 for Bio Defence

About this game

Bio Defence is a biological tower defense game for Android by prox Interactive.

Build and upgrade towers to protect a microscopic world from waves of viruses and bacteria. Combine 18 tower types, face 10 bosses, and use 8 combat skills alongside guardian Immuno.

The game supports 10 languages. The latest update adds 26 achievements, including boss and last-stand challenges.

Free to download on Google Play. Contains ads and optional in-app purchases. You can begin without a mandatory game account.

Screenshots show actual gameplay. Some game artwork was created with generative AI; development and promotional writing used AI assistance.

Information

Status
Released
Release
2026-10-28
Art style
—
Platforms
Android
Price
Freeads · in app purchase
Players
Single player
Age rating
3+

AI disclosure

Generative AI was used for some game artwork, including character/boss illustrations, and AI assisted code development and promotional writing. Screenshots are captures from the actual game; no simulated or generated gameplay is presented.

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