All of the above, PLUS a digital art book and a digital copy of the soundtrack by Chuck Ragan. Making a high production value original album isn't cheap, and this tier will help us make the best soundtrack possible.
All of the above, PLUS a sweet poster featuring the art of Scott Sinclair, AND you get your name in the game. You can stumble across your island or old camp as you play the game, as will every other player. (subject to creative review)
All of the above, PLUS take part in a development play & feedback session with the lead designer on the project, either in the office or via skype (or hangouts or whatever). Play an in development version of the game, share your feedback, contribute your thoughts, and get credited as PATRON CONSULTANT in the credits.
All of the above, PLUS you help design a character that is added to the roster of NPCs to encounter. Who are they? What do they want? What quirks make them a unique memorable addition to the world? Help us fill the world with interesting personalities. You will be credited as PATRON DESIGNER.