Planet Defense: Space TD blends roguelike progression with space-themed tower defense, delivering unique random upgrades and deep strategic choices to defend your home planet. With over 1,000,000+ total downloads and 54K in the last 30 days, it holds a solid 4.13 average rating from 7,527 reviews and regional STRATEGY rankings (CZ #32, IR #56, US #63).
Pros & Cons
Roguelike progression delivers high replay value
Deep strategic options with diverse sentinels and abilities
Easy-to-learn controls with challenging mastery
Free-to-play with regular updates and new content
Branding could foreground space-themed or tower-defense keywords more to improve discoverability
Ad/analytics and location permission requirements may raise privacy considerations for some users
Perceived gap vs. traditional tower-defense branding for players seeking classic TD terminology
About Planet Defense: Space TD
Planet Defense: Space TD is a strategy app developed by CyberJoy Games.
Download Statistics
Planet Defense: Space TD has been downloaded 1.4 million times. In the last 30 days, the app was downloaded 54 thousand times. It is ranked in the top 100 strategy apps.
User Ratings
Planet Defense: Space TD is rated 4.24 out of 5 stars. The rating is based on 10 thousand ratings.
App Information
Planet Defense: Space TD is FREE to download. The APK download size is 449.35 MB. The latest version available is 0.1.68. The last update was on June 30, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play September 2025.
Description
Embark on an interstellar adventure with Planet Defense, a thrilling roguelike tower defense game! Defend your home planet against relentless waves of alien invaders by building, upgrading, and optimizing your defenses. With easy-to-learn mechanics and deep strategic gameplay, every decision counts in your quest for survival.
Key Features: Roguelike Progression – Each playthrough is unique, with randomize upgrades and challenges. Adapt your strategy to survive!
Strategic Depth – Unlock and upgrade a variety of powerful sentinel, each with unique abilities. Combine them wisely to fend off increasingly tough foes.
Immersive Experience – Stunning visuals and atmospheric sound design pull you into an epic cosmic battle for survival.
Easy to Learn, Hard to Master – Intuitive controls make it simple to jump in, but mastering the game requires smart planning and quick thinking.
Endless Replayability – Procedurally generated levels and multiple difficulty modes ensure no two battles are the same.
Defend. Upgrade. Survive. Can you outsmart the alien onslaught and become the ultimate galactic defender? Download now and start your journey!
Age Rating 13 Years Above in IGRS: Game content suitable for ages 13 and above (13+)
Recent changes: 1. New Event - Lost Starfield: Explore the Lost Starfield to earn the brand-new Force Field Sentinel Skin Set and many other exclusive rewards. 2. New Skin Set: Added the Force Field Sentinel Skin Set, including Planet, Sentinel, Mothership, and Shield skins. 3. Galaxy Arena Improvements: Adjusted the weekly random Sentinel pool. Each week's rotation now includes every attribute type. 4. Bug Fixes: Fixed several bugs and corrected text and spelling issues.
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This game is the absolute king of tower defense games! Save your planet from aliens, set up turrets, and make upgrades. The waves get progressively harder, but the fun is packed. The graphics are spotless, and the controls are easy. Build your strategy, place the turrets in the right spots, and completely wreck the aliens. It runs offline too, making it perfect for passing time
★★★★☆Noah Peng· May 30, 2026
I enjoy the gameplay, but it needs to be easier to earn coins. The biggest bottleneck to progressing in this game is the fact that you get so little coins per run that it takes 10+ runs to get one upgrade (obviously, so you spend money to buy coins). I normally do not mind slow progression systems like this, but the problem with this game is that you're going to be stuck failing the same level for DAYS while you collect coins. It gets stale after a while, which is a turn-off.
★☆☆☆☆James Buell· Jun 23, 2026
Soon as you hit stage 9 and up you gotta pay lots of money to get anywhere or get stronger. Looks pretty but it's trash.
★☆☆☆☆AnDy Shenk· Jun 21, 2026
Shield capacitors.!!! Where/how to use.!!! NOT Satellite Force Field. NOT Shield Designs... says to upgrade force shield which I assume is the planetary shield, but can not find where to use. Not in the chip/module screen, the missile upgrade screen. I must have over 200 & can buy them in the shop but Does not have a place to use. Tried emailing. Tried wiki & videos. Tried stupid AI. Besides the slow level progression & the Shield Capacitors.!! decent game. No customer service to speak of
★☆☆☆☆Jordan Paschke· Jun 11, 2026
Incredibly low paywall for a poorly developed game. Blueprints are required to upgrade weapons, but three of the weapons stop earning blueprints after hitting level six. All weapons and the planetary mines do nothing for level seventeen waves, same with Binary Planet level 16. This game ONLY wants you to spend money to unlock things that won't even help you progress beyond level seventeen. NOT WORTH DOWNLOADING
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Planet Defense: Space TD is requesting 24 permissions and we don't have library information (yet).
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Trust & Safety: The app requests a broad set of permissions including advertising identifiers and analytics (ACCESS_ADSERVICES_* and AD_ID), location (COARSE/FINE), network, storage, foreground service, and billing-related permissions. This aligns with a free-to-play model supported by ads and in-app purchases; users should review privacy settings and consider limiting data sharing as desired.
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