Many "interesting blog posts" about RimWorld highlight its massive modding scene. Reviewers from sites like ENEBA recommend these as essentials:

: Adds an imperial title system, psychic powers, and high-tech weaponry. Shopping Options

It sounds like you've come across a blog post or site listing a download for , which was a version released in late 2022 alongside the Biotech expansion.

: Allows you to build colonies with friends.