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6 different types of towers! 4 planets with different characteristics! 25 different enemies. Drones, Tanks, Biorobotic enemies and many different ground and air vehicles! Snowy and Glacial maps, Desert and Arid lands! Prepare to defend the solar system against invaders!
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
How it worksTracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
An epic defensive battle!
Easy and fast gameplay!
Replayability with different strategies!
Sweet Low Polygon graphics!
6 different types of towers!
Different upgrade options for each tower!
Possibility to develop 3 levels for towers during the game!
Level dependent enhancement options!
4 planets with different characteristics!
Snowy and glacial maps, Desert and arid lands, Greenery mountainous
25 different enemies. Drones, Tanks, Biorobotic enemies and many different ground and air vehicles!
Prepare to defend the solar system against invaders! The solar system, which has been living in peace for years, is occupied by robots sent by an advanced civilization. There are 4 different planets in this star system that you have to defend.
Between mountains, forests, glaciers, and deserts, you must defend your lands and fend off invaders in order to achieve victory and set your civilization free again. While making your defense, you should use 6 different towers in the most strategic way.
By paying attention to resource management and making tower upgrades correctly. You have to place the towers in the correct positions.
Tower rarity mechanic: Each tower starts with 1st level rarity at the beginning of the game, this level can be improved with in-game experience.
There are 4 different colors for each tower: blue, green, red and yellow. As you go from blue to green, the towers get stronger.
When you build the tower during the game, a tower of these 4 colors is produced depending on the rarity level of that tower. The higher the level, the higher the probability of getting a yellow tower. As the power of the towers increases with the colors, the amount of back sales also increases.
When you produce a yellow tower, you can sell it for a higher price than your purchase price. At this point, tactics come into play. Will you strengthen your economy and fight with more towers or will the strong tower be enough for you?
Right now the cheapest offer for Planet TD is CA$0.12 at K4G. KingsPrice compares 4 offers from 4 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Planet TD is CA$0.11 (recorded on Jul 14, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
Create a free price alert on this page and KingsPrice will email you when Planet 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.
