CastleWars .io is a fantastic multiplayer online IO game. Enter a magic land in which castles float on top of clouds and fight against lots of opponents to become number one. Of course, you will have to confront more powerful creatures found in any magical story: evil flying dragons that spit fire. Collect gems and kill opponents to level up and upgrade your castle's walls, towers and ammunition and become undefeatable. Think you can become the king of this world and create the perfect castle? Have fun with CastleWars IO!