Ibulian
Long ago, civilization fell. It's not known why, but nature just sort of failed, and civilization can't withstand no food, no rain, plants rapidly growing over and through buildings, once reliable magics stuttering or failing. Then, just as unexplained, it stopped. As the People struggled to rebuild under the watchful eyes of gods, they fought for survival, then supremacy. In time, the wars slowed and stopped, and People now live and endeavor to make their world better, while aware that they the world could rise up against them again at any time for any reason.
A few brave souls make their way through ruins of the old world trying to find answers or even just valuables. These folk are generally regarded as heroes, so long as they don't prove themselves to be villains. They tend to live lives of glory and pain, frequently ended quietly in dark places, and all that remains is stories told by simple folk at tavern fireplaces.