We gave it a B
When aliens destroy Earth, the last human colony rejects technology and reverts to medieval theocracy in David Weber’s Off Armageddon Reef. After 750 years, a sex-shifting warrior android reboots to fight church repression and promote marvels like cannon-armed galleons.
Battlestar Galactica meets Master and Commander and the Protestant Reformation.
A thin sci-fi frame for a sometimes rousing, often sluggish age-of-sail epic. B