Wild Talents might also fit the bill. It's based on the One-Roll Engine (ORE), the same thing that powers REIGN and Monsters and Other Childish Things. I haven't had the chance to play it yet, so I don't know how well it handles your criteria in practice. That said, the rules allow for scaling from "normal human" all the way up to "epic" (ie. Superman). It also explicitly has the Uncontrollable flaw for power creation. There are no real mechanics for character relationships that I could find, but they might exist in an expansion.

System for Setting: Misfits
I'm not sure whether to post this here or on Stackoverflow, as it's sort of a crossover. Let me give it a try.

In the proposed HTML5 standard, there's the option of storing web application data in a local cache using a cache manifest. I am looking to use this technique for an offline tiled web map application and did a quick prototype here based on a standard install of Geoserver. 

I just ripped the OpenLayers client page that is generated from one of the default layers and changed the &lt;html&gt; tag to 

&lt;html xmlns="http://www.w3.org/1999/xhtml" manifest="cache.manifest"&gt;


And created the file cache.manifest which simply reads

CACHE MANIFEST
http://lima.schaaltreinen.nl:8080/


Which should, in my limited understanding of the matter, locally cache everything that loads from that URL: all tiles and the OpenLayers JS. In fact, upon first call in Firefox, it does ask me to allow local storage, but when I hit refresh - either online or offline - the page croaks stating that the OpenLayers object is not defined. Looks like it hasn't loaded the OpenLayers JS.

Anyone successfully did a functioning offline OpenLayers-based tiled web map app? Or hints on how to investigate this further?
