The oldest, primeval gods are Cerun, Macha, Ashryn, Ranimas, Kala, Madit, and the Stranger. These elder gods govern the core of existence. Their children are the gods of creation: sprung from the essence of the works of their parents.   All save Umra, lord of Undeath. Umra was a mortal who, through wild ambition and mysterious explorations, was able to amass immense power - enough to challenge the gods themselves.
Religion when the world ends The faith of all followers of all religions are now being tested. As battle rages in the cosmos, gods rise and fall, their influence waxes and wanes and the mortal plane suffers in the aftershocks of each divine blow.

World Codex

Special Rules There is war in the heavens leaving mortals in Odava neglected – even forsaken. After the death of Aquila, imperial orders of Paladins have lost their powers, holy grounds of the temples are overrun with corruption and the prayers of the faithful are unanswered.     Players may follow gods whose powers wax and wane in the tumult of celestial war. The deities are at times unresponsive, weakened, or enraged. As the war progresses the power of these gods may change leaving their followers powerless at times, but with perseverance the faithful may be rewarded.   Weakened gods may be distracted in battle or enfeebled by their wounds and have little attention to spare for their followers. All divine spells require a spellcasting check with a DC of 10 + the Spell’s level. Failure triggers a mishap with unintended consequences, and the spellcaster can’t attempt spells of that spell level again until they take a safe rest. The GM can require a 1d20 roll on the Magical Mishap Table or simply describe what malady the PC suffers.