The children of Nyx were the children that Nyx gave birth to by herself. Most of her children are dark and gloomy deities that are associated with death, destruction and many other bad things and they live in the underworld. There are many children of Nyx and they are Hemera, Philotes, Thanatos, Oizys, Momus, Moros, Oneiroi, The Hesperides, Moirai, Keres. Eris, Nemesis, Apate, Geras, Hypnus.
Geras was the god of old age and is here because he leads us to death, Thanatos.
Hemera was the goddess of light and day.
Oizys was the goddess of misery.
Momus was the god of blame.
Thanathos was the god of death and the twin of the god Hypnus and was featured in many myths.
In one myth, Thanathos was going to kill a king called Sisyphus, Sisyphus did not want to die so he tricked Thanathos and chained up Thanathos. While Sisyphus was in the mortal world, there was a war that Ares was watching but he became confused and frustrated when he noticed that no one on the battlefield died, so he found and released Thanathos and went to find Sisyphus. When Sisyphus was in Tartarus, he told Persephone that his wife didn't do a proper funeral thus allowing him to go back to the mortal world again. This time Thanathos had to forcefully drag him down to Tartarus and his punishment was to roll a boulder up a hill but rolled back down when it got close to the top.
Alcaeus refers to this event:
"King Sisyphos, son of Aiolos, wisest of men, supposed that he was master of Thanathos; but despite his cunning crossed eddying Acheron twice at fate's command"
When Thanathos came to take the soul of Alcestis. Heracles sprung on the god and defeated him. And Thanathos fled.
Moros is the god of doom.
The Keres were the goddesses of death and doom
Philotes was the goddess of friendship
The Oneiroi were the spirits of dreams. They were said to be the sons of Hypnus.
Nemesis was the goddess of revenge and retribution.
Apate was the goddess of deceit.
The Hesperides, also known as The Daughters of Evening, were nymphs who tend a blissful garden at the far western corner of the world.
The Moirai, or the fates, controlled fate and they were Clotho, Atropos and Lachesis. They controlled the lifestyle of every mortal and decided when they would die.