So, here's an RP idea I had: 500 years or so ago, an asteroid (actually a malevolent psychic terraforming organism) collided with the Earth and wiped out most of the human race. Its collision caused the creation of new species, some of which are sentient. It also caused some creatures on the planet to develop magical/psionic powers. You'd command one of the new sentient species on this new world, and would try to survive and grow. Anyone interested?