The modern practice of the Cultus Deorum is an attempt to reconstruct the ancient religion of the Romans as closely as possible, making as few concessions to modern sensibilities as possible. As with other forms of historical reconstructionism, every attempt is made to rely on actual historical and archaeological evidence, and interpolations are made only when the primary sources are silent, and then we strive to be consistent with them.
Official Mailing List
The official mailing list for discussion of the Cultus Deorum in Nova Roma is at https://groups.io/g/ReligioRomana/
Starting with the Cultus Deorum today
Because of the principles of reconstructionism, almost everything that can be said about the historical Cultus is also true about the modern Cultus. Reading about the Numa tradition, the Lararium and Household worship would be a good start. You can find a list of prayers to the various gods here. Read more about starting with the practice of Roman religion for starters.
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