RimWorld Odyssey Xenotype: Starjack Overview
Written by Alec Blackwood
Starjack are a xenotype in RimWorld Odyssey designed for life in space. They’re built for low gravity, extreme temperatures, and vacuum exposure, but they’re awful at most ground-based survival work. If you’re flying gravships or managing orbital stations, Starjack are one of the best crew types you can bring.
Here’s a full breakdown of their traits, stats, and best uses.
What Are Starjack in RimWorld Odyssey?
Starjack are genetically modified humans made for zero-gravity maintenance work. They first showed up during early space colonization, when it was cheaper to modify people than redesign ships. You’ll find them mostly on deep-space platforms or working gravships.
They aren’t warriors or outdoorsmen. But they’re tough, efficient workers in harsh sci-fi conditions, especially if you’re living off-planet or on the move.
Starjack Xenogenes Overview
Starjack have a complexity of 11 and a +1 metabolic efficiency, meaning they consume less food than normal.
They come with the following permanent xenogenes:
Key Functional Genes
Vacuum resistant: +45% vacuum resistance, lets them survive temporary exposure in space
Cold tolerant: Boosts minimum comfortable temperature
Heat tolerant: Boosts max comfortable temperature by +10°C
Indoor dweller: Removes outdoor need entirely
Construction and Combat Genes
Great construction: +8 construction aptitude, adds one construction passion
Poor melee: -4 melee aptitude
Weak melee damage: 50% melee damage
Awful mining: -8 mining aptitude, removes mining passion
Awful plants: -4 plants aptitude
Awful animals: -4 animals aptitude
Cosmetic Genes
No hair
Facial ridges
Sheer white skin
This makes them best suited for building things indoors or on ships, while being nearly useless at combat, farming, animal care, or mining.
Best Uses for Starjack Colonists
Gravship builders: Their +8 construction makes them top-tier for building and repairing ship modules
Orbital base staff: Immune to outdoors need and vacuum burns
Temperature extremes: Works fine on cold moons, hot planets, or decompressed ships
Low-maintenance workers: They consume less food and don’t care if they never see daylight
Just don’t ask them to farm, tame animals, mine, or fight. If enemies get close, pull them back.
Tips for Using Starjack Efficiently
Pair them with high-cooking or high-crafting colonists to cover gaps
Use them in dangerous construction areas like heat vents or sealed rooms
Avoid giving them melee weapons
Stack multiple Starjack on ship repair duty to scale fast
Great with mechanoid colonies or indoors-only settlements
Can You Extract Starjack Genes?
You can extract genes from Starjack like any other xenotype. But keep in mind: xenogerm implantation replaces their entire xenogene set. If you overwrite it, you lose their full build and will have to re-engineer it from scratch.
Don’t mix Starjack with combat-focused builds unless you’re ready to lose their space survival bonuses.
Final Blurb
Starjack are a RimWorld: Odyssey xenotype made for life between planets. They thrive in space, hate melee, and build like pros. You’ll want them in your gravship’s engine bay, not out chopping trees or brawling with raiders. Keep them inside, keep them constructing, and they’ll earn their keep every time.
FAQ
Q: What is the Starjack xenotype in RimWorld Odyssey?
Starjack are engineered humans built for space survival and construction work.
Q: Are Starjack good fighters?
No, they are extremely bad in melee and deal half damage.
Q: What are Starjack good at?
Building, ship repair, and surviving in vacuum or extreme temperatures.
Q: Can Starjack survive in space?
Yes, they can briefly survive vacuum due to the Vacuum Resistant gene.
Q: Do Starjack need to go outside?
No, their Indoor Dweller gene disables the need for the outdoors entirely.
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