If you were one of the good chaps who decided to back this fantastic looking game on kickstarter awhile back I have good news! You can now get your Steam key and get access to the Beta. If you are unfamiliar with what Castle Story is, or maybe you forgot because its been so damn long, here is a little video. To get the Beta you had to of backed the game during the kickstarter campaign.
To claim your key follow these not so simple instructions (its really the only way they can deliver it at the moment)