Defend Your Life: TD on Steam - User reviews, Price & Information
Quick menu
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.
Defend Your Life: TD is a tower defense, casual and strategy game
developed and published by Alda Games.
Released on April 10th 2015 is available on Windows, MacOS and Linux
in 10 languages: English, French, Italian, German, Spanish - Spain, Czech, Japanese, Portuguese - Portugal, Russian and Simplified Chinese.
It has received 1,085 reviews of which 863 were positive and 222 were negative resulting in a rating of 7.6 out of 10. 😊
The game is currently priced at 2.92€ on Steam with a 70% discount.
The Steam community has classified Defend Your Life: TD into these genres:
Media & Screenshots
Get an in-depth look at Defend Your Life: TD through various videos and screenshots.
System requirements
These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.
Windows
- 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
User reviews & Ratings
Explore reviews from Steam users sharing their experiences and what they love about the game.
Defend Your Life: TD is a tower defence (TD) game set inside the body of a patient on an operating table. You take control of the body's immune system to fight off waves of tapeworms, flu viruses, alcohol and other nasties. The game has the look of a 1970s educational cartoon. The graphics aren't actually bad. They're just a bit cringeworthy. However, there is a deliberate irony about the visual style and it's actually quite charming in some ways. For example, one of the hero units you can buy is based on the Incredible Hulk. As a TD game, it's quite well balanced and has the right mix to make it addictive fun. One slight drawback is that the menu sits on the right hand side of the screen and obscures the place where the creeps exit, which can cause great frustration when you can't click where you want to.
Expand the review
Defend your life - Your everyday tower defense game. First of all, I would like to say that I am recommending this game mostly for the casual gamers or for younger players. If you are a gamer that only goes for AAA games, this is not for you (though I guess that goes without saying). So, in general, here are the pro's: + quick / easy / fun to play (mildly adictive) + nice gradual difficulty progression + very fluid + excelent for a first tower defense or for younger audiances + you can beat the hell out of Cancer + Easy to get the full set of achievements + Good value for money. The cons: - Doesnt seem to fit the screen. I keep on getting the impression that I dont see what is going on the edges of the map - Game tends to become very slow during the final waves of the last level. - While playin in window mode, you will have to minimize windows bar - Sometimes the UI blocks you from seeing enemies or selecting them - ...cant recall of anything else that could be bad about it. I started playing Defend your life while I was spending Christmas holidays with the family, as a gap filler in the slower hours, and I couldnt be more pleased. It is a very simple and very basic tower defense game, based on defending your body against all sorts of virus and problems - which will be your enemies. In the begining, the game seems to have a childish look to it, and more adult people will probably relate it to the 80's cartoons "Once upon a time... life". The first couple of levels seem to be extremely easy and you feel that the game will get boring very soon. However, the difficulty level escalates in an interesting progression, and most levels seem to introduce something new. It gives you some time to learn in depth about all the enemies and defenses that you have available without "setting out the wolves" on you from a moment to another. Also, you cannot just jump to the hardest difficulties, as you will have to play "easy" to unblock "medium" and them "medium" to unblock "hard". This has some sense to it, has you will need to get money to evolve your bodies defenses, in order to make it into the harder difficulties. Otherwise, it would just be impossible. You will also have the opportunity to play with heros that will help you defend your body. These characters are upgradable in power, speed and health, and they will be fundamental for you to beat the game in the later stages. For the achievement hunters, it is also a great game to have. You can actually tick most of the achievements on your regular game play. No need to go into laborious tasks that in the end are boring and sound like a lot of work. All in all, it is a quick / easy to play game, that brings you a great value for money. I would recommend it!!! (Another negative - in window mode, it is so easy to forget to close the game and leave the room. I think I got 52h of gameplay in a week and that got me into trouble with my partner, has she thought that I spent the whole week playing games!!!)
Expand the review
I like this game quite a bit. Yeah its a generic tower defense game but its done very well. The economy and upgrade functions are solid and all the towers are solid with the level design functional. Also the theme is under explored. The graphics are charming and well done.
Expand the review
===// TL;DR Version //=== A decent but rather generic TD on the cheap. ===// Thorough Version //=== It's a recommended buy only if you're looking for a TD fix at a cheap price. At the moment, when I write this review, it's 80% off. Otherwise, there's nothing new compared to others in the swathe of TD games on Steam. If you're looking for something new in terms of mechanics, look elsewhere. The graphics isn't something to write home about; obvious mobile port is obvious. The assets are well-drawn, detracting this game from the rest of the run-of-the-mill TD games. Kinda reminds me of Worms. It's based on Unity, with the usual Unity launcher and a maximum resolution of...1024x768? I'm guessing the supported resolutions depend on the max vertical resolution of your display/monitor, which mine is 1366x768 since I'm on a laptop. It does, however, seem to support multi-display, as in you can decide on which monitor you'd want this game to be displayed in via the Unity launcher. There are (limited) global upgrades that affects towers' attack & range, tower sell value, specials' effectiveness, and in-level currency-related like how many starting oxygen per level or how much you get per mob kill. These upgrades are bought using 'tablets', which you can get from finishing a level. Each level holds a maximum of 7 tablets, which is divided to 3 at Easy, 2 at Medium, and 2 at Hard. The tablets are finite, but you can easily 'sell' upgrades if you want to put the tablets into other upgrades that you want more. The specials? It basically breaks down to the basic three. A bomb (AoE nuke), electric shock (global nuke), and adrenaline (AoE tower buff). Yes, that's it. Specials have infinite usage, though...limited only by their cooldowns. The in-level currency is oxygen, and the in-game one is crystal. Oxygen is what you use in a level to build towers. Crystal is, I'm just guessing here, effectively what you'd buy with real money in the mobile version. Crystals are used to buy boosters, which either adds oxygen, adds life, adds an extra of your strongest unit, resets all specials' cooldown, and global adrenaline. Yep, typical freemium boosters. The Encyclopedia is probably the most dodgy part of the game. The Enemy details is in-game, but when you click for Tower details, the game opens up your browser to load the related webpage on the game's website. Tips & Tricks is no different from Tower details. Others is basically other games made by the game studio, and yes, acts the same way as Tower details. Keep in mind that this game is a 430-ish MB download and 660-ish MB installed, so I don't really get the technical reason as for why they couldn't just cram everything locally in the Encyclopedia. My conclusion? Please refer to the TL;DR section at the top of this review. ;)
Expand the review
For such a cheap price at release i.e. 80% off the usual £3.99, I had more fun playing this Tower Defense (TD) game than I've had playing a lot of games I've paid 20 times as much for. Defend Your Life is a typical TD game with the usual tower purchases, for example upgradeable cannons and tesla towers, as well as other towers that slow units down or toss grenades, plus there are special towers such as those that give you extra oxygen. Oxygen is the currency in game which allows you to purchase more towers and upgrades, plus at the end of each level you are awarded tablets and diamonds, both of which can be spent either on upgrading your tower defenses or on special upgrades that can only be used once to top up other defenses that usually take time to recover such as the electric shock , bomb or adrenaline. The theme of this TD game is biological, with a human body being attacked by viruses. Each level gradually takes you further into the body. You can set the speed up to four times the normal speed and/or select from three different difficulties. Even at full price I think Defend Your Life is a bargain. I reckon most TD fans will enjoy this game and it's also an excellent introduction for those new to the genre. The easy mode is relatively easy to beat. I played through several levels with no losses. The harder levels give less currency to buy the various upgrades and the speed of the viruses are increased, plus you get less oxygen currency to start with. With 22 different enenies, all with different strengths and weaknesses, for example the flu virus divides into two weaker flu viruses when it is killed and the Nicotinic unit disappears when first hit and is immune from attack while invisible, at least from the tower defenses. You can still damage these with bombs and electric shocks. There's a tips and tricks section as well as an encyclopedia that gives you information about each building, for example the Tesla tower does more damage for each shot than any other tower, but takes a longer time to recharge. There are some nice little touches like the defensive towers that when activated create little beings that don't do actual damage, but block the path of incoming viruses. When damaged they recover fairly quickly. If destroyed new ones will replace them before the next wave. You can start the next wave early by clicking on the warning symbol that pops up near the place where the viruses first appear. The quicker you do this, the more oxygen is added to your total, giving you more currency to buy or upgrade towers. The 20 achievements for this game are relatively easy to attain, so long as you can survive the waves of viruses. You can see a video of game play [url=https://www.youtube.com/watch?v=7kxQunPNz6o] HERE . I highly recommend this game
Expand the review
Similar games
View all
Swords and Soldiers HD
Rewrite history as you take control of the brutal Vikings, the devious Aztecs or the crafty Chinese in their global quest to win the favour of the Gods! Swords & Soldiers is a side-scrolling strategy game that lets you control an entire army and lets you wield devastating magical abilities.
Particula
Destroy negativity, clear your mind! Particula brings you a new perspective in gaming, helping you to concentrate and relax. A three players co-op tower defense experience with a relaxing soundtrack, smooth visuals and gameplay.
Fieldrunners
Fieldrunners is now available on Steam! Download it now to play the hit tower defense game critics and fans have been raving about. Descend into the world of Fieldrunners, the most anticipated and visually stunning game in tower defense history!
Evil Defenders
Evil Defenders is a fun, frenetic defense game: build and upgrade your towers, сast spells to repel enemy forces, use special landmarks and defend the Lands of Evil from invaders! Feel free to play the game in many different ways through unique tower upgrades, a deep skill tree and 100 in-game achievements.
iBomber Defense Pacific
iBomber moves to the Pacific as you fight a whole new enemy across the Pacific rim to regain freedom.
Broken Universe - Tower Defense
Get ready to rethink all your defense strategies! Build barricades to stop monsters, or lure them into a maze and attack. A variety of stages that change each time depending on how you play them.
YORG.io
YORG.io is a game with an original twist on supply chains and zombies. Your goal is to build a base which survives the night which is when zombies attack. Build and upgrade defensive towers to protect your base and try to survive as long as possible.
Oriental Dynasty - Silk Road defense war
Experience the perfect combination of tower defense and the historical plot of the Silk Road, so as to bring an amazing epic game adventure experience! You will follow our protagonists in a strategic battle on the Eurasian continent! Come on, buddy, this epic fantasy adventure needs your help!
Terrorhedron Tower Defense
Terrorhedron is the 3D, cooperative tower defense game for the PC. Unmatched challenge and complexity is introduced to the genre through 3 dimensional gameplay, micro-strategy through programmable turrets and 'edge of seat' gameplay is extended to multiplayer with up to 8 players online co-op.
Cursed Treasure 2
Why be good when you can be... bad? Cursed Treasure 2 is an addictive tower-defense game that puts the power of darkness at your fingertips. Build towers of powerful orcs, demons, and undead, and master powerful spells, to protect your precious hoard from all manner of no-good do-gooders.
Dungeon Warfare 2
Become a dungeon lord to defend your dungeons with the deadliest of traps and insidious contraptions against greedy adventurers and wannabe heroes.
Frequently Asked Questions
Defend Your Life: TD is currently priced at 2.92€ on Steam.
Defend Your Life: TD is currently available at a 70% discount. You can purchase it for 2.92€ on Steam.
Defend Your Life: TD received 863 positive votes out of a total of 1,085 achieving a rating of 7.59.
😊
Defend Your Life: TD was developed and published by Alda Games.
Defend Your Life: TD is playable and fully supported on Windows.
Defend Your Life: TD is playable and fully supported on MacOS.
Defend Your Life: TD is playable and fully supported on Linux.
Defend Your Life: TD is a single-player game.
Defend Your Life: TD does not currently offer any DLC.
Defend Your Life: TD does not support mods via Steam Workshop.
Defend Your Life: TD does not support Steam Remote Play.
Defend Your Life: TD is enabled for Steam Family Sharing. This means you can share the game with authorized users from your Steam Library, allowing them to play it on their own accounts. For more details on how the feature works, you can read the original Steam Family Sharing announcement or visit the Steam Family Sharing user guide and FAQ page.
You can find solutions or submit a support ticket by visiting the Steam Support page for Defend Your Life: TD.
Data sources
The information presented on this page is sourced from reliable APIs to ensure accuracy and relevance. We utilize the Steam API to gather data on game details, including titles, descriptions, prices, and user reviews. This allows us to provide you with the most up-to-date information directly from the Steam platform.
Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.
Last Updates| Steam data | 05 March 2026 08:07 |
|---|---|
| SteamSpy data | 11 March 2026 08:35 |
| Steam price | 12 March 2026 12:46 |
| Steam reviews | 12 March 2026 00:00 |
If you'd like to dive deeper into the details about Defend Your Life: TD, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.
- SteamDB - A comprehensive database of everything on Steam about Defend Your Life: TD
- SteamCharts - Analysis of Defend Your Life: TD concurrent players on Steam
- ProtonDB - Crowdsourced reports on Linux and Steam Deck Defend Your Life: TD compatibility
Game modes
Features
Online players
2
Developer
Alda Games
Publisher
Alda Games
Release
10 Apr 2015
Platforms