The Blood Company
The average Roman citizen is very secular in his outlook and has very little time for the gods. Engineering, technology, mathematics, even magic are well understood principles and the universe holds few mysteries that need supernatural explanation. However, religion does have a significant cultural impact and the state treats it appropriately.
The official religion of the Empire is the worship of the Emperor as the successor to the Olympian deities. The Emperor is the Pontifex Maximus, head of the church and a divinity in his own right. As such, the law is both secular and divine. As long as the Empire is at peace, the Church is very passive, but when necessary the Church has become a potent weapon of the Empire.
There are three principal edicts:
1) There is one God and he is the Emperor. The church is monotheistic. The Olympians have gone “beyond” and left the Emperor to oversee the people. Worshiping other gods is heresy. Acknowledging a competing Emperor is heresy.
2) The forces from beyond are unholy All spiritual forces not condoned by the church are abomination. Contact with these beings is heresy.
3) Thou shall not meddle with the dead. Necromancy is heresy. The undead are an abomination. The dead should be burned in proper funeral pyres. There is no afterlife.
The church employs special forces, the Malleus (“Hammers”) to search out the above heresies. They are a mixed force of clergy, sorcerers and warriors who hunt down heretics. Although they are a small force, they are politically powerful and have nearly unlimited authority to enforce the church’s edicts.