Castle Defense Online icon

Castle Defense Online v2369

Contains ads • In-app purchases

Castle Defense Online screenshot 0 Castle Defense Online screenshot 1 Castle Defense Online screenshot 2 Castle Defense Online screenshot 3 Castle Defense Online screenshot 4 Castle Defense Online screenshot 5 Castle Defense Online screenshot 6 Castle Defense Online screenshot 7

About this app

Developer Description

The game that falls in love :) Real-Time Multiplayer Defense!

Join the Ultimate Tower Defense Adventure!
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.

What's New

2025-12-29
Other bug fixes

In-app purchases

$0.99 - $37.99 per item

Version Information

Version
2369
Downloads
1M+
Updated on
Dec 29, 2025
Released
Apr 18, 2020
Requires
Android 7.0

Statistics

Google Play Rating History

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Rating Distribution

Total Ratings:

Downloads Over Time

Castle Defense Online has been downloaded times.

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Castle Defense Online users say on Google Play

★★★★★
REDRAIN77 REDRAIN77

make auto-match choice and system choose difficlty depending on rank other wise i will not waste 5 mins just to find a room

19 Mar 24, 2025
★★★★
Zen Nguyen Zen Nguyen

Game has a lot of bugs like the host disconnecting even though the host is still in-game, the crates in escape room making you slip off for some reason, etc. The game is still great overall, but I think there are still some things you need to improve.

4 Feb 21, 2024
★★★
paul ustic paul ustic

love the game but since switching to the global version after account transfer I can barely get a game in before crashing, app closes itself. I may not have the best phone but I haven't had this issue with any other games I played besides a few mmorpg's I tried but I'd digress. Hopefully they will add a US server or something but it's currently unplayable for me

3 Nov 10, 2025
★★
c7k bgy oğulları c7k bgy oğulları

mechanic is so bad right now there is no item that benefits him i spend 5 hours trying to figure out how to build this guy (i have all the enchants) when i go hp and damage his skill damage drops to 0 when i try going auto attack(damage attack speed crit hp) build first his survivebility issues came out and then his other skills (other than his mine robots) stops doing any damage going xp doesnt help either there isnt a relic that help with his issues level 15 defence is a torture with mechanic

1 Aug 6, 2024
Corey Choquet Corey Choquet

It's horrible! I go in the game and I need a name I enter and after reseting phone game it still won't let me just play for once. It's horrible even when reinstalled it. the next day still! Just let me play already it can even be played horrible

8 Nov 24, 2023

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