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 60K 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.
How many times has Planet Defense: Space TD been downloaded?
Planet Defense: Space TD has been downloaded 1.4 million times. In the last 30 days, the app was downloaded 60 thousand times. It is ranked in the top 100 strategy apps.
What is the rating of Planet Defense: Space TD?
Planet Defense: Space TD is rated 4.27 out of 5 stars, based on 10 thousand ratings.
Is Planet Defense: Space TD free?
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.
What are the requirements for Planet Defense: Space TD?
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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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.
★★★★★Warren Thibeau· Jun 10, 2026
Thank you I finally found a defense game I really enjoy love the graphics. also, please keep it updated and have it to where the game doesn't end
★★★★☆M F· May 21, 2026
I really like this game overall, it's one of my favorite mobile games. The graphics are nice, the later levels are challenging but not excessively so, power progression is pretty well-balanced. My only real complaint is that sometimes, all three available "upgrades" are new sentinels, and sometimes none of them are one that you actually want, and it only lets you reroll once, so if it happens twice (as it sometimes does), it essentially forces you into picking a sentinel you don't actually want.
★☆☆☆☆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
★☆☆☆☆Anthony Stewart· May 23, 2026
Game is fun but the weekly rankings are lead by people who spend over $185 between thursday 7pm eastern and sunday 7pm eastern. Might be a little more but no exaggeration on the $$, just went in and totaled the packs they "offer" to "help" get onto the leader boards. 4/26 the weekly contest you have to pay to compete freezes now after each level. Unless you pay $15 to jump the leaderboards. Stay away from this game 5/23 game still crashing on weekly journey
★☆☆☆☆Andrew· May 20, 2026
Ads longer than the game, first ad after 10 seconds which was another ad game I couldn't escape. I don't mind ads but instant uninstallation.
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