User blog comment:Sonasaurus/Survival of the Fittest, 2017/@comment-24020008-20160820162514/@comment-1044705-20160820234959

Aliens won't be a problem, really. The village could very well have a mixed species population who are more than a little technologically behind but otherwise accepting of the mentality where survival through cooperation is priority. I'll probably build the demographics based on the types of characters that are signed up; if it's just Humans and Sangheili, then that'll be the local population; if Kig-Yar or Jiralhanae are included, then I'll throw some in as NPCs as well. Anyone can blend in so long as they choose to.