The Forbidden War: https://www.era-games.com/era-forbidden/

The world burned in their war. Angels. Demons. We were caught in the middle, and we lost.

Now, the only way to fight back is to bind our souls to a Remnant.
Divine power. Unholy cost.

It changes us. Warps us.
But it also gives a few of us a chance to survive… and to strike back.

To survive, we have to take a Remnant.
Become the weapon.
Become more than Human… and less.
Become Forbidden.