1. Home
  2. ๐ŸŽฎ Games
  3. Castle Defense Online
Castle Defense Online - 4p

Castle Defense Online - 4p

Castle Defense Online

102 ratings
220 reviews
With Ads
๐ŸŽฎ Games
๐Ÿฐ Strategy
Free
In-App PurchasesWith Ads

Details

Released
May 7, 2020
Updated
October 13, 2026

Features

Developer

donghwan kim
โœจPromote your app โœจ
Castle Defense Online - 4p screenshot #1 for iPhone
Castle Defense Online - 4p screenshot #2 for iPhone
Castle Defense Online - 4p screenshot #3 for iPhone
Castle Defense Online - 4p screenshot #4 for iPhone
Castle Defense Online - 4p screenshot #5 for iPhone
Castle Defense Online - 4p screenshot #6 for iPhone
iphone
ipad
๐Ÿงพ$0.49 - $34.99
In-App Purchaseโ†˜๏ธŽ
๐Ÿ“ŒReady
Reviews summaryโ†˜๏ธŽ
โญ220
Reviewsโ†˜๏ธŽ
๐Ÿ“7+ tags
Tagsโ†˜๏ธŽ
๐Ÿ”„6+ apps
Alternativesโ†˜๏ธŽ
โ“5 answered
FAQโ†˜๏ธŽ
๐Ÿ“ฆ~ in 1 week
Updates frequencyโ†˜๏ธŽ
๐Ÿ–ผ๏ธGet Icon
Iconsโ†˜๏ธŽ

About

Engage in real-time cooperative defense against waves of enemies. Strategically build towers, collect unique characters and items, and team up with friends to overcome challenging bosses and protect your castle.

โœ“Real-time 4-player cooperative play
โœ“Easy 2D horizontal scroll controls
โœ“Collect unique characters and skills
โœ“Upgrade with runes and relics
โœ“Build strategic towers
โœ“Guild system for social play
Show original description

What users say about Castle Defense Online

Reviews of Castle Defense Online are mostly positive: the game is rated 4.2/5 from 102 App Store ratings. What users like most: good gameplay mechanics, cute character designs. Top complaints: repetitive gameplay, difficulty spikes in higher levels. Summarized from real user reviews.

Positive things

  • ๐Ÿ‘Good gameplay mechanics
  • ๐ŸŽจCute character designs
  • ๐ŸคEnjoyable co-op experience
  • ๐Ÿ•น๏ธVariety of game modes
  • ๐Ÿ’ŽGenerous rewards/currency system

Negative things

  • ๐Ÿ”Repetitive gameplay
  • ๐Ÿ”„Difficulty spikes in higher levels
  • ๐Ÿ†Reliance on high-ranked players for progress
  • ๐ŸŒLack of solo/single-player options
  • ๐ŸŒ†Cluttered UI with too much information
See all reviews

What's New in Castle Defense Online

2599

October 13, 2026

2026-10-13 Other bug fixes

10

Subscriptions & In-App Purchases

$0.99

Diamonds 500

Diamonds are used for heroes, runes, etc.

User reviews

Most RecentHighest RatedLowest Rated

Goated game

Needs more players but isnโ€™t noob friendly
FFreazypop06

fun but

Itโ€™s really fun to play, but progression feels very slow, and it takes forever to improve your overall experience. My friend and I beat difficulty 2, but weโ€™ve been stuck on difficulty 3 for an entire day. I hope they can add AI bots to help take some of the pressure off us.
Iisjsjsbsbsne

Needs more people

Good game nice 4p tower defense game, love the item buying. Wish it had more players though
DDuckz787

์˜ค๋ฅ˜ํ•ด๊ฒฐ๋ถ€ํƒ๋“œ๋ ค์šฉ

๊ฒŒ์ž„ ์ž˜ํ•˜๊ณ ์žˆ์Šต๋‹ˆ๋‹ค. ๋‹ค๋งŒ ๋ฌดํ•œ์˜ ํƒ‘์—์„œ ์ง€์†์ ์ธ ์˜ค๋ฅ˜๋กœ, ์ง€์† ๋”œ๋กœ ์ดˆ๋งˆ๋‹ค 10๋ฐ๋ฏธ์ง€ ์ž…๊ณ ์žˆ์Šต๋‹ˆ๋‹ค. ์›๋ž˜ ๊ทธ๋Ÿฐ ๋งต์ด๋ผ๊ณ  ํ•˜๊ธฐ์—” 10ํšŒ ํ”ผ๊ฒฉ์‹œ ์ง€๋Š” ๊ฒŒ์ž„์ด๊ธฐ๋„ ํ•˜๊ณ  ์œ ํŠœ๋ธŒ ์˜์ƒ๋“ค์„ ์ฐพ์•„๋ด๋„ ์ง€์† ๋”œ์ด ์žˆ๋Š” ๋‹จ๊ณ„๋Š” ์•„๋‹ˆ๋”๋ผ๊ตฌ์š”. ํ˜„์žฌ 48์ธต์„ ์ด ๋ฌธ์ œ๋กœ ๋ชป ๊นจ๊ณ ์žˆ๊ณ  ๋‹ค๋ฅธ ์ธต์—์„œ๋„ ์ด๋Ÿฐ ์˜ค๋ฅ˜๊ฐ€ ์กฐ๊ธˆ์”ฉ ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค. ํ™•์ธ ๋ถ€ํ„ฑ๋“œ๋ฆฝ๋‹ˆ๋‹น.
์”Œ์”Œ์‚ฌ์‚ญ

Fun game but it crashes every time I finish a game.

This is a pretty fun game to play, however it tends to crash after every game.
AEaverage Videogame enjoyer
See 215 more reviews

Developer apps

๊ธธ๋“œํ‚ค์šฐ๊ธฐ : ์šด๋ช…์˜ ์†Œ์šฉ๋Œ์ด
๊ธธ๋“œํ‚ค์šฐ๊ธฐ : ์šด๋ช…์˜ ์†Œ์šฉ๋Œ์ด

๊ธธ๋“œํ‚ค์šฐ๊ธฐ : ์šด๋ช…์˜ ์†Œ์šฉ๋Œ์ด

๐ŸŽฎ Games
Free
In-App PurchasesWith Ads
ํ‚น ์˜จ๋ผ์ธ
ํ‚น ์˜จ๋ผ์ธ

ํ‚น ์˜จ๋ผ์ธ

๐ŸŽฎ Games
Free
In-App Purchases
Castle Defense Online 4p
Castle Defense Online 4p

Castle Defense Online

๐ŸŽฎ Games

(152)

Free
In-App PurchasesWith Ads
๋ฏธ๋‹ˆ ๋””ํŽœ๋”์Šค: ๋ฐฉ์น˜ํ˜• ๋””ํŽœ์Šค ๊ฒŒ์ž„
๋ฏธ๋‹ˆ ๋””ํŽœ๋”์Šค: ๋ฐฉ์น˜ํ˜• ๋””ํŽœ์Šค ๊ฒŒ์ž„

๋ง›์žˆ๊ฒŒ ์ฆ๊ธฐ๋Š” ์ „๋žต๊ณผ ํ˜‘๋™! ์‹ ์„ ํ•œ ๋ฐฉ์น˜ํ˜• RPG ๊ฒŒ์ž„

๐ŸŽฎ Games

(948)

In-App Purchases
See developer apps

User experience

๐Ÿž

Reported Bugs

3 issues

Crashes and freezes on certain devices

Bug

Inconsistent reward/progression tracking

Bug

Login/account issues after updates

Bug
โœจ

Requested Features

4 requests

Difficulty adjustment options

Feature

More solo/single-player content

Feature

Improved UI organization

Feature

Account/progress transfer between devices

Feature

FAQ

What is Castle Defense Online - 4p?

Castle Defense Online - 4p is a real-time multiplayer defense game where up to four players can cooperate to stop incoming enemies. It features strategic tower building, character collection, and a guild system.

What are the key features of this game?

Key features include real-time cooperative play for up to 4 users, easy 2D horizontal scroll controls, collecting unique characters and skills, strengthening with runes and relics, building diverse towers for strategic play, and joining guilds to grow with friends.

Is Castle Defense Online - 4p free to play?

Yes, the game is free to download and play. It offers in-app purchases and may also feature advertisements.

What kind of enemies and challenges can I expect?

Players will encounter a variety of enemies, from cute creatures to scary jungle monsters. The game also includes challenging impossible bosses that require strategic planning and teamwork to defeat.

How does the cooperative gameplay work?

Up to four players can join together in real-time to defend their castle. This cooperative mode allows players to combine their strategies, character abilities, and tower placements to overcome the waves of enemies more effectively.