FATE takes today’s question and for a good many reasons. Fate Accelerated is totally free and FATE Core is pay what you want. In addition the FATE SRD is elegant and awesome. If you have not looked at this site yet. Do yourself a favor and go take a look at how an awesome SRD should look. Check it out HERE
Not only does Fate do all these things right, With the System Toolkit you can run anything you can think of with the FATE rule. The only drawback of FATE. It’s almost too easy.