From the campaign:
Leprechaun's Revenge is an expansion for what is simply the bestest and most funnest card game in the world, Redshirts.
It did fairly well as table top games go, and we sold out our first two printings. (At the time of writing this a third printing is on its way)
And so we are (finally) ready to push an expansion out of the door. It's more of everything you loved about Redshirts.
Pledging on our Kickstarter campaign will get you access to the new goodness before all of your friends who will wind up having to buy it at a store like a sucker. Plus as an extra special bonus, Redshirts 3: Beating a Red Horse will be available to folks who pledge the right amount. You can get that expansion a full six months (minimum) before anybody else does!