The core idea for the game world is a classic/dark fantasy setting where the mortals overthrew and killed the realms gods. It can be assumed that the pantheon of gods that had been in charge were mostly corrupt and evil at least in the eyes of the mortals too busy with their petty games to recognise the risks.
This raises another concern as to how were the mortals able to kill the gods?
- Some form of god killing weapons may be made for battles between gods or crafted by the mortals themselves.
- Stopping the worship of gods, in some realms gods are given strength by having people worship them, in this way maybe the whole realm stopped worshipping them as gods?
- Trickery, getting the gods to kill themselves.
- Gifted heroes, some people in the world were far more powerful and had the ability to fight the gods toe to toe. Could include gaining access to god level magic.
- A war on the gods, pure weight of humanity crashing against the machinations of the gods.
- The gods are evidently not omnipotent nor omnipresent.
We can assume the gods have some kind of physical presence that can be killed and that they exist on planes of existence that the mortals can get too and often en masse.
Another thing is that there are inevitably those who weren’t fully onboard with the whole “let’s kill the gods” idea.
In the setting, I’m imagining that great heroes rise up and lead armies against the gods having spent many years gathering resources and skills possibly watched by amused and scoffing deities until the mortal hoard crashes down upon them. There are no doubt mighty and cataclysmic consequences for the realm and its people, those who fill the ranks of the gods forces against the mortals are forever shunned in legend. Deep and everlasting bitterness created.
Where they stood, some rough thoughts
Elves
The elves were closest to the gods and sided with them during the war but much like their prefered deities they were dismissive until the last moment and as the powerful tides of the other mortals crashed against them. Elves were devastated and forced from many of their strongholds. The result is that they have become even more hateful of the other races, notable slave traders, blood magic ritualists and bitter.
Lizardfolk / Gali
The lizardfolk are varied habitats and tend to live in tribes several of which sided with the mortals others ignored the entire affair and some joined with their prefered gods. In general, the thought process of the Lizardfolk is alien to most other mortal races. However, since they have had some second thoughts on the matter.
Kanku
Descended from crows the Kanku are excellent mimics but generally poor at anything that requires original thought as such flocks were beholden to their deities and fought long and hard, now they follow any large intelligent creature that can give them purpose.
Humans
The main force behind the rebellion only a few of the nations sided with the gods and those that did are forever cursed by the rest of humanity. Humans also had the greatest number of heroes.
Dwarves
The Dwarves were strong supporters of the war against the gods.
Gnomes
Gnomes are evil little critters but kept out of the whole affair looking to profit from it.
The Dead the don’t die
A number of those that die now no longer remain dead, they continue to walk the realm, slowly decaying as they do.
Reincarnation
The world heavily revolved reincarnation now, and a concept of “if a man can be reborn a worm then perhaps a god can be reborn a man?” Many societies keep a watch for such a scenario also the rebirth of Heroes.