Strange Land's Traits

Having performed a Discord RP with CrossoverWeasel16 about most characters from various modern animated projects, and maybe some considered old ones, I would sometimes think of a story that could be treated as a version of that RP, with an addition of realism via those native inhabitants of that continent speaking some different languages, though sprachbunds should be accounted for.

The original RP involved those tribals speaking English, just like me and my shipwrecked cohorts, with both of us understanding each other.

I'll just flesh out the continent, the indigenous inhabitants, and the conlang ideas.