Hrmm
If it's a post-apocalyptic whereas the world is ravaged and you're a hero trying to save it, that's definitely like iZone's storyline xD But post-apocalyptic could be cool if taken in a unique direction. Idk; since it's a wasteland, it could be focused on re-building towns or even building towns/camps (guilds each have their own and it kinda works like a guild house?). With stylish graphics, it could be pretty cool