Defend Your Life: TD

70KS
Released Apr 10, 2015by Alda GamesMostly Positive(79% of 1.1K Steam reviews)

Defend Your Life! Is tower defense set in human body where players are fighting against villain hordes of viruses and bacteria. Levels and units correspond to reality of human anatomy.

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About Defend Your Life: TD

Defend Your Life! Is tower defense set in human body where players are fighting against villain hordes of viruses and bacteria. Levels and units correspond to reality of human anatomy.

Show your tactical and strategy thinking in epic battlefields situated in appendix, pancreas, heart, brain and many others vital organs. Customize build order of towers and use wisely upgrades and mighty spells. Use electric shock, bombard the enemies or support your towers by adrenalin injection. Summon mighty Golem and stop enemies like Flu, Cold, kidney stones or cancer. Everything in outstanding graphics.

Key Features:

  • Enjoy 17 epic battles in real human organs with interactive

  • Fight against 20+ different enemies based on

  • 2 monumental boss fights where you will face the Stonekid and Cancer

  • Command Platelet soldiers and support them in fights

  • Hero Room with specialists ready to fight under your command

  • Build and upgrade 3 attacking towers with rich tech tree and don´t forget to support them with tower increasing range, attack rate or damage

  • Use and upgrade in-game bonuses with strong effect during fight – explosive bombs, electric shocks or adrenaline increasing attack rate of your towers

  • Enjoy the game on easy mode or accept the challenges of medium or hard difficulties

  • Read the in-game encyclopedia in order to take advantage of the knowledge about enemies and buildings

  • Use headphones for engaging audio experience included original music and sound design.

  • Enjoy the awesome hand painted levels and catchy cartoon animations

  • Addictive gameplay that will hook you in the human body for hours and hours!

Game details

Defend Your Life: TD price history

Lowest tracked price: £2.55 (Jul 13, 2026) · current best: £8.50.

Defend Your Life: TD player count & reviews

79% positive reviews all-time · 4 peak players in the last 30 days.

Defend Your Life: TD — frequently asked questions

Where can I buy Defend Your Life: TD at the cheapest price?

Right now the cheapest offer for Defend Your Life: TD is £8.50 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.

What is the lowest price Defend Your Life: TD has ever been?

The lowest price KingsPrice has tracked for Defend Your Life: TD is £2.55 (recorded on Jul 13, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.

How many people play Defend Your Life: TD?

Defend Your Life: TD peaked at 4 concurrent players on Steam in the last 30 days (highest on Jul 7, 2026). The player chart on this page updates daily.

How can I get Defend Your Life: TD at a discount?

Create a free price alert on this page and KingsPrice will email you when Defend Your Life: TD drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.

System requirements

Minimum

Minimum:
  • OS *: Windows XP Service Pack 3
  • Processor: Dual Core CPU
  • Memory: 1 GB RAM
  • Graphics: OpenGL 3.0 compliant with 512MB of video RAM.
  • Storage: 400 MB available space

Recommended

Recommended:
  • OS *: Windows XP Service Pack 3
  • Processor: Dual Core CPU
  • Memory: 2 GB RAM
  • Graphics: OpenGL 3.0 compliant with 1.0GB of video RAM.
  • Storage: 400 MB available space

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