Welcome to
[Castle Defense Online]


Play real-time multiplayer games with friends
Simple and cute characters based on 2D graphics!
Unleash your potential that controls skill.
Attack, defend, upgrade and build!

Download

[Black hammer]
creates a fun indie game world!


Blackhammer is a couple development team.
We've been making Castle Defense Online for two years.

Indie Game?

BlackHammer's indie games are ...


Hidden gems

It is a creative and innovative indie game.

With friend

We aim for real-time multiplay with everyone.

Multilingual support

Enjoy games in your language.

Loved games

We will make a games that are favored by many users.

Start and Play now!

Download Now!

Let's Get In Touch!


If you have any questions or improvements about the game, please feel free to contact us.

+82 (032) 000-0000