: Each gene has a metabolic cost or benefit. You must balance positive traits with negative ones (like increased hunger) to keep efficiency at -5 or higher Set Heritability : Decide if the genes are (passed to children) or (artificial implants that are not heritable). Save and Name
The game imposes a hard limit of -5 metabolic efficiency for xenogerm implantation. Any xenogerm below this threshold cannot be implanted. If your custom design pushes metabolism too low, you will need to add more negative genes to raise the efficiency back into the implantable range. rimworld create xenotype
A tank that deals immense damage and never goes down. : Each gene has a metabolic cost or benefit
: Strong Melee Damage + Robust + Dark Vision + Terrain Speed (Underground) + Weak Immunity + UV Sensitivity. These pawns never see the sun but dominate in mountain bases, tearing through infestations and mining like drills. Any xenogerm below this threshold cannot be implanted
: Tinderskin (flammable) + Photosynthesis + Weak Immunity + Strong Plants Work Speed. They live in a sunlamp bay, eat raw fungus, and burn like dry kindling in a fire. Emotionally, they are detached and efficient.