Quick question: are the Kzin, Tnuctip, and pretty much all the other aliens discussed recently in Niven’s books all from the Ringworld, or are they from other books of his?
They’re pretty much from the Known Space series, all of which are loosely strung together. This is largely made up of short stories, as well as some of his novels. Probably the best sourcebook to read up on ALL of it, at once, would be the old out-of-print Ringworld role-playing game, from Chaosium.
Failing that, look for his incredibly thick story collections, N-Space, and Playgrounds Of The Mind, which covers a lot of the basics discussed here.
Except for the grendels. They’re from a completely separate book, The Legacy of Heorot, which has a much more plausible basis than Known Space (i.e., all of the science in Heorot is already known, and the technology is a reasonable extrapolation of known technology).
“Down in Flames” - a basic plot outline was in N-Space or Playgrounds of the Mind, can’t remember much else. It was basically a story that would contradict everything from all the previous Known Space stories.
And what I said about the Thrint mental amplifier killing all multicellular life in the galaxy is correct. Bandersnatch are not multicellular.