Quote Originally Posted by Wigferth Ironwall
Horatius, the Romans only killed off the British Priesthood, not the religion. In general the Romans identified local gods with their own. So the "barbarians" worshipped the same gods, but with added Roman names.
The thing that made the Briton Gods distinct was the Druids, killing the Druids destroyed much of the faith, for example Stone Henge an important part of that religion will forever be a mystery, although the Britons along with the Roman Garrisons there did worship the British Gods.

Compared to what Christians did, or what Muslims did to other religions the treatment of the Britons was fair, but in comparison to what Romans of the time did elsewere it wasn't, and the game is all about capturing the time isn't it?