Bio Inc. Total Defense
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About Bio Inc. Total Defense
Bio Inc. Total Defense is an incremental tower defense game set inside the human body. You place defenses in blood vessels to protect organs from pathogens, which pour in through every entrance as soon as a stage begins. There are no waves or breaks: you start with hundreds of enemies in a capillary and progress to more than 100,000 across the whole body.
Defend the body
You can unlock and upgrade 11 defenses. White blood cells and macrophages hunt invaders, while tissue walls and mucus slow their spread. Fever blasts, acid glands and antibody cannons provide further ways to fight them. Placement matters, as does choosing when to use septic shock.
Upgrade your build
Spend Bio Points on more than 150 upgrade nodes that affect damage, range, defense count and new behaviors. Winning earns Research Points, which unlock more defenses. You can also use 75 health factors to tune your build with extra ability charges, stronger immunity, crowd control and perks such as Chain Reaction and Last Stand.
Frequently asked questions
The best price for Bio Inc. Total Defense is $9.00 at Kinguin. It is the only shop with an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and Bio Inc. Total Defense stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for Bio Inc. Total Defense are: Windows 10, Radeon RX 550, AMD Ryzen 5 1600, 2 GB RAM, 2 GB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Bio Inc. Total Defense is a single-player game.
Yes. Bio Inc. Total Defense is the full base game. You need nothing else to play it.











