The thing change a little bit, and you can’t disable everything from biters anymore, but we have no enemies mode, where biter nests still exist, but no biters are spawn. (This is still on top of the peaceful mode, where enemies are spawned, but don’t attack antil provoked).

https://www.reddit.com/r/factorio/comments/1fvwegy/friday_facts_431_gleba_captivity/lqa84rp/