A $ 15 pledge gets you a DRM free version of the game on PC, Mac or Linux with a projected release date of July 2014. (segadriven.com)
Considering the usual price is # 15 this deal provides a sizable saving, and best of all you will get a DRM - free version of the game alongside a Steam key. (dealspwn.com)
Get the story mode only, DRM free version of the game at this early backer cost. (kickstarter.com)