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Screenshots

  • Castle Defense Online - 4p screenshot 1
  • Castle Defense Online - 4p screenshot 2
  • Castle Defense Online - 4p screenshot 3
  • Castle Defense Online - 4p screenshot 4

About Castle Defense Online - 4p

The world's first real-time multiplayer defense game. Castle Defense Online! 1. 4 users can play cooperatively in real time. 2. Easy control with 2D horizontal scroll. 3. Collect unique characters, powerful skills, and various items. 4. Become stronger with 50 runes and 30 relics. 5. There are cute enemies and scary jungle monsters. 6. Clear the impossible bosses. 7. Build towers that can use a variety of strategies. 8. Meet and grow with friends in the guild. Can you safely stop incoming enemies?

Ratings & reviews

4.2

102 ratings

5 ★ 65% 4 ★ 19% 3 ★ 2% 2 ★ 2% 1 ★ 13%

What’s new

Version 2599 · Updated October 13, 2026

2026-10-13 Other bug fixes

Play today's Threadline puzzle

Draw one line through every cell, visiting the numbers in order. A free daily puzzle from Fiplay, same board for everyone. It plays right here, no download.

More Threadline and other daily puzzles on Fiplay →

App privacy

The developer, donghwan kim, reported these privacy practices to Apple.

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Purchases: Purchase History
  • Location: Precise Location, Coarse Location
  • User Content: Customer Support
  • Identifiers: User ID, Device ID
  • Usage Data: Product Interaction, Advertising Data
  • Diagnostics: Crash Data, Performance Data
  • Other Data: Other Data Types

Used for: Third-Party Advertising, App Functionality

Alternatives to Castle Defense Online - 4p

Looking for apps like Castle Defense Online - 4p? Here are 6 similar apps on the App Store. The highest rated is 我要練神功 (4.6/5), and all 6 are free to download.

Castle Defense Online - 4p vs. alternatives
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