 "The Castle Doctrine" was first released as a paid alpha and sold at half-price from March 2013 until its official release on January 29, 2014.As was visible through its history of updates during beta testing, it went through several changes, primarily the increase of gameplay difficulty.One was the addition of dedicated "perma-perma-death" servers, where players could not even re-create characters after dying, in contrast to the game's generic "perma-death" servers.