From the publisher's website:
Dark Ages Roleplaying in War Torn Britannia
Age of Arthur is our pen and paper roleplaying game set in Britannia, two generations after the withdrawal of the Roman Empire.
Using a variant of the Fate gaming engine, Age of Arthur takes you back to an age of desperate heroism, when a brave few battled for freedom against an ever growing invading power.
Take up your spear and shield, draw up the power of the old gods, make binding oaths of honour and create your own ballad fighting for a united Britannia, the old ways, for the memory of Rome, when all is crumbling into barbarism about you