The latest (and probably last) version of Fourth World, my “drift” of Dungeon World to support the setting of Earthdawn, is now available. It is targeted at supporting longer-term campaign play.
For those that don’t know, Earthdawn is a high-fantasy game created by FASA in 1993. Like most games from this era, it has an extremely detailed body of setting information, and terrible mechanics. It was, however, a cut above a typical fantasy heartbreaker, particularly setting wise. The world is actually the distant past of the setting in Shadowrun, with some characters existing in both. (If you squint a bit, the setting also has some similarities to the Fallout series of video games.)
If you tinker with Dungeon World, but aren’t so interested in the Earthdawn setting, you might still want to take a look. Some design tech in there might be useful to you. If you have questions about the choices I made, here is the place to ask.