Another game idea (only setting at the moment)that I may or may not pick up. Lacking inspiration and drive at the moment, but at least I'm having a couple of ideas even if I don't know what to do with them.
Post apocalyptic settings are seeing a great surge in the last year or so, across all mediums. I can see why, it's a great way to study humanity with out its boundaries. I've enjoyed watching and playing through the various films, tv shows and games. So it's not a bad thing and so far everyone is taking a different way of approaching it. I'm particularily enjoying the reading of the Nevercast development, it's a shame that my own lack of inspiration is hindering me from making much useful comment, however it seems to be going along really well, so no worries there.
So I want to develop a post apocalyptic RPG. I may not, but I would like to and have an idea or sorts. Most (maybe all how can I say?) post-apocalyptic settings assume some vestige of mankind survives, humanity always lives on. Not in this setting. For whatever reason mankind dies out. Not a single one left, or such a small amount that the population dwindles into nothing. Hundreds of years pass, then thousands and eventually new life begins to take humanities place. Surrounded by mankinds influences but without it's hand to hold them back, some animals have evolved in a similair vein as humans did. Not all had the intelligence, need or enviromental stimulus to achieve the new level of consciousness, to be able to stand tall on two legs, to communicate with language, but enough did and a society is emerging. A tribal society within the ruins of mankinds cities, ignorance surrounded by technology.
The game would revolve around growth and discovery, players living within the old cities of man, finding technology and wondering just what to do with it. Or they could strive to become the strongest in their tribal territory, claim the most land. Perhaps all players belong to the same species and believe themselves to be superior to all others.
I think there wouldn't be many actual races to choose from. One species evolving to that level is improbable, more than 3 or 4 is a very big stretch of the imagination. I was thinking those that evolved would be those that relied on and had the most interaction with people: rats, cats and dogs.

On Inspiration
I believe that inspiration can be manufactured. What are you doing to revitalize your creativity? Here are some methods I use to stir up the juices:
1. I only work on my ideas at night. There's far too much outside nonsense going on during the day for your thoughts to gather any momentum.
2. I find that trance, electronica, and house music attunes my mind to the setting I'm working on. Go on iTunes radio and try to find the best musical frequency for your setting. (Try Baroque for fantasy settings.)
3. Research, research, research. I'm reading everything from Discover, to Lao Tzu, to The Economist, to "Mexico and Peru: Myths and Legends" for my setting.
4. I've dissected my favorite video game and pen and paper RPGs. I need to know what makes them great, both from my own experiences and the experiences of others. You can easily find that developers have forums on their websites where people tell them what is good and bad about their games.