Downloads
The game that falls in love :) Real-Time Multiplayer Defense!
AppBrain's verdict
EstablishedPopular- Rating on Google Play
- 3.99
- 22,797 ratings
- Installs
- 1.5 million
- Last updated
- November 6, 2026
- Ads
- Contains ads
- Size
- 128.6 MB
Castle Defense Online is popular, with 1.5 million installs. Users are divided: 4.0 stars from 22,797 ratings. Its best ranking is #37 in Top Free, Strategy in Iran.
User feedback
Ratings and reviews on Google PlayComments on Castle Defense Online for Android
Google Play Rating history and histogram
Store listing
By Black Hammer, from Google PlayDescription by Black Hammer Written by the developer, not by AppBrain. Click to read.
The world's first real-time 4-player multiplayer defense game! Castle Defense Online!
Castle Defense Online offers an exciting and strategic experience where 4 players can play together in real-time, defending your base from waves of enemies. Whether you're a fan of tower defense games or multiplayer games, this action-packed RPG is perfect for you!
Features:
- Strategic Multiplayer Defense: Work as a squad in 2 player games or gather a team of 4 to battle it out in this thrilling co-op defense game.
- Easy & Intuitive Controls: Classic 2D side-scrolling action with simple controls that anyone can master. Perfect for those who love arcade and adventure games.
- Unique Characters & Powerful Skills: Collect a diverse set of heroes, each with their own special abilities, and create the ultimate tower defense strategy.
- Endless Growth: Customize your heroes with over 50 types of runes and climb through 20 tier levels. It's time to go beyond the limits!
- Challenging Bosses & Freaky Monsters: Prepare for epic battles against freakish bosses and hordes of jungle creatures.
- Build & Upgrade: Construct and upgrade your base and towers to withstand the toughest enemies in this immersive online experience.
- Adventure Time with Friends: Join or create rooms where you and your friends can play together, defending your base in a world full of imposters and hidden dangers.
- Free Games: Enjoy this free-to-play game that combines elements of strategy games, io games, and td mechanics, making it one of the most engaging multiplayer games out there.
Are you ready to face the reality of defending your base against overwhelming odds? Gather your squad, set up your defenses, and dive into the ultimate tower defense experience with Castle Defense Online.
Play together and see if you can survive the clash of enemies in this fast-paced adventure.
Perfect for:
If you’re a fan of the monkey defense genre or enjoy creating your own games with game maker tools, Castle Defense Online is a must-play. Perfect for those who love the thrill of popping bloons and engaging in brawl-style battles, or those who enjoy building and crafting like in multicraft.
Whether you're into hide and seek games or you’re a fan of classic 2D side-scrolling action with simple controls, this game offers an immersive experience you won’t want to miss.
Recent changes:
2026-11-07
Other bug fixes
Safety and technology
Found in the app by AppBrain- Ads
- Contains ads
- Price
- Free
- Libraries
- 43
- App size
- 128.6 MB
- Needs Android
- 4.4+
- Content rating
- Low
Technologies used by Castle Defense Online
Releases
Updates seen on Google Play- Version
- 2617
- Launched
- July 2019
Alternatives
Similar apps and more from Black HammerAlternatives to Castle Defense Online
More like this: Best Tower Defense Games for Android
More from Black Hammer
Installs
Tracked by AppBrain- Last 30 days
- 4.3 thousand
- Per day
- 140
- 30-day average
- Play install range
- 1+ million
- Launched
- July 2019
Installs over time
Castle Defense Online has been installed 1.5 million times. Over the past 30 days, it averaged 140 installs per day.
Rankings
Google Play top charts- Highest rank
- #37
- Chart
- Top Free
- Strategy
- Country
- Iran
Google Play Rankings for Castle Defense Online
Top rankings
| Rank | Country | Category | List |
|---|---|---|---|
| 37 | Iran | Strategy | Top Free |
| 193 | Germany | Strategy | Top Free |
| 122 | South Korea | Strategy | Top Free |
| 78 | South Korea | Strategy | Top Grossing |
| 158 | Iran | Strategy | Top Grossing |
Ranking history in Iran
About the app and developer
About Castle Defense Online
Castle Defense Online is a strategy app developed by Black Hammer.
How many times has Castle Defense Online been installed?
Castle Defense Online has been installed 1.5 million times. In the last 30 days, the app was installed 4.3 thousand times. It is ranked in the top 100 strategy apps.
What is the rating of Castle Defense Online?
Castle Defense Online is rated 3.99 out of 5 stars, based on 23 thousand ratings.
Is Castle Defense Online free?
Castle Defense Online is free. The app size is 128.63 MB. The latest version available is 2617. The last update was on November 6, 2026.
What are the requirements for Castle Defense Online?
Castle Defense Online requires Android 4.4+ or higher. The app has a content rating of Low Maturity. The app has been available on Google Play since July 2019.
Castle Defense Online is made and published by Black Hammer. AppBrain is an independent app data site and isn't affiliated with Black Hammer. The app name, icon, screenshots and description belong to Black Hammer and are shown as published on Google Play.
App Performance Report
Get a detailed PDF report for Castle Defense Online with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more
Get PDF Report — $29Developer information for Black Hammer
Frequently asked questions about Castle Defense Online
Is Castle Defense Online free?
Yes. Castle Defense Online is free on Google Play.
Is Castle Defense Online still available?
Yes. Castle Defense Online is on Google Play, and the last update we saw was on November 6, 2026.
Does Castle Defense Online contain ads?
Yes. Google Play lists Castle Defense Online as containing ads.
What Android version does Castle Defense Online require?
Castle Defense Online runs on Android 4.4 and higher.
How large is Castle Defense Online?
Castle Defense Online is 128.63 MB.
Is Castle Defense Online suitable for children?
Google Play gives Castle Defense Online a low maturity rating, so it is meant for older children and up.
How many times has Castle Defense Online been installed?
Google Play lists 1,000,000+ installs for Castle Defense Online.
How do people rate Castle Defense Online?
Castle Defense Online scores 3.99 out of 5 stars, from 22,797 ratings on Google Play.
Who made Castle Defense Online?
Castle Defense Online was developed by Black Hammer. It is listed in the strategy category on Google Play.
What are the best alternatives to Castle Defense Online?
People looking at Castle Defense Online also look at these strategy apps: Boom Castle: Tower Defense TD, Tower Defense - Legend Kingdom, Neon Castle: Idle TD Game, Castle Defender Premium, Rush and Rumble Castle Defense.