If you haven’t heard of Fate, it’s an updated and improved take on the Fudge RPG rules. It’s a very different but very rules-light and roleplay-heavy system, and has won critical acclaim in the RPGs Spirit of the Century, Dresden Files, Diaspora and more. Now, the company behind this system and games, Evil Hat, is running a Kickstarter to produce an improved writing of these rules in a system-neutral book ala GURPS and others. With these rules, you can run anything from fantasy, science fiction, cyberpunk, and more.
I haven’t personally used the Fate rules, but have heard many great things about it. The buy-in for this Kickstarter is very low; $1 gets you immediate access to the working draft, while $10 will get you all of the PDF expansions that are unlocked. As of this writing, it’s already at $66, 812, with an original goal of $3,000. I commend Evil Hat for setting a realistic goal as well as a long timeline. Right now 10 expansions have already been unlocked, with another one very close. There’s still 55 days ago, so who knows how far this thing can go.