Gods are divine immortals who control the forces of nature. They are related to the older Titans, their ancestors and chief enemies. There are now 12 major gods who rule over the universe, the Olympians, all of whom are under the rule of Zeus, god of the sky. There are many other minor gods, who serve smaller though necessary, purposes in the world. Despite their primal power and divine authority, they are subject to the divine laws, and cannot break oaths sworn upon The River Styx.