The gods are worshipped by most of the world’s inhabitants but the nature of that worship is as varied as the people. Some individuals give offerings to the whole pantheon (except the evil deities) while others dedicate their lives to the service of only one. Rites which are seen as essential to a deity in one community are completely unknown in another just a hundred miles away.
Some isolated cults also worship primordials and even demons. These groups strive to keep their existence a secret until they feel ready to unleash whatever plan their evil masters have planned.