There is a vein of SciFi writing that riffs on either a biblical theme or some form of post holocaust/grand destruction rebuilding. Dark Eden by Chris Beckett combines both.
Eden (note the rather crude biblical reference) is a planet populated by the descendants of two astronauts (fortunately male and female) who were stranded their about 160 years ago. The 500 odd descendants are indeed odd, inbred and amoral. Doesn’t sound good? Well actually it isn’t bad, it’s readable although there are no surprises in the plot line.
If you like this type of stuff, then this might be worth a read, particularly if you want a series that has the potential to run on and on. There is a second book in the series, Mother of Eden, it has the potential to get better but I a not sure I want to hang in there to find out.
Personally I much preferred Canticle for Leibowitz which is a true ‘classic’, if you haven’t read it, it’s a ‘must read’