Rimworld Create Xenotype [upd] Jun 2026

The RimWorld modding community has embraced the xenotype system enthusiastically, creating thousands of new genes and xenotypes that dramatically expand the possibilities.

deserves special mention as a framework mod that defines rules for keeping metabolic efficiency within acceptable ranges across different xenotypes. Many larger mod collections depend on this utility to ensure genetic stability.

Psychite dependency is often overlooked as an advantage rather than a weakness. The required psychite tea is easy to grow almost anywhere, relatively safe for general consumption, and provides beneficial mood effects. This dependency also grants immunity to most drawbacks from yayo or flake, both useful combat drugs. Many custom xenotype designs include psychite dependency as a negative trait to offset the metabolic cost of powerful positive genes.

: Skin colors, hair colors, and tail types cost 0 metabolic points . Use them to give your custom species a distinct visual identity. rimworld create xenotype

In , you can create a custom xenotype either at the start of a new game or during an active colony playthrough if you have the Biotech expansion. How to Create a Xenotype 1. During New Game Setup This is the easiest way to start with a unique race.

These change the pawn's body.

These affect how the pawn lives its life. The RimWorld modding community has embraced the xenotype

Click "Save," name it "Pit Boss," and assign it to your starting pawns.

: Give your new race a name and an icon. A crucial step is to check the " Genes are heritable " box at the bottom if you want this species to be a true, breeding race (more on this later). Then, save your xenotype.

that allows you to engineer specialized humans with unique genetic traits Psychite dependency is often overlooked as an advantage

When creating a xenotype at the start of a game, you are defining a template. You can choose whether your starting faction treats these traits as inheritable germline genes or locked xenogenes. Metabolic Efficiency

Before you land your drop pods, you have the most freedom. Here is how to access the editor: