Rimworld bionics transform fragile flesh into high-efficiency machinery, letting your colonists work faster, fight harder, and survive conditions that would instantly kill an ordinary human. Managing a colony on the Rim requires constant adaptation, and replacing lost limbs or upgrading healthy bodies with advanced prosthetics represents one of the most reliable ways to secure victory against harsh raids and environmental hazards.
Understanding how to source, install, and utilize these upgrades separates a struggling settlement from an industrial powerhouse. Every colonist's body tells a story of survival, injury, and technological triumph, making medical augmentation a central pillar of long-term colony management.
Understanding the Bionic Progression Curve
Progression through body modification happens in distinct phases, reflecting your colony's technological advancement and resource availability. Moving from basic biological parts to advanced cybernetics requires research, specialized materials, and skilled surgeons.
Simple Prosthetics and Peg Limbs
At the start of a scenario, your colonists might suffer injuries from hostile raids or hunting accidents. Simple prosthetics like wooden hands, peg legs, and simple dentures serve as stopgap measures. These items restore basic functionality to colonists who would otherwise be incapable of moving or working, but they impose heavy efficiency penalties. A colonist with two peg legs moves at a fraction of their normal speed, making them a liability during emergencies and agricultural seasons.
Medical and Bionic Upgrades
Once your researchers unlock prosthetics and later bionics, you can manufacture true cybernetic enhancements at a fabrication bench. Standard bionic arms, legs, eyes, and spines surpass baseline human biology. A bionic arm grants 125 percent manipulation, meaning your craftsmen, tailors, and doctors complete tasks noticeably faster and with higher quality outcomes. Bionic eyes restore full or superior sight, eliminating accuracy penalties in ranged combat and improving research speeds.
Archotech Wonders
At the absolute peak of technology lie archotech body parts. You cannot manufacture these relics; instead, you must purchase them from traders or claim them as rare quest rewards. Archotech eyes, arms, and legs operate at 150 percent efficiency or higher, possessing mysterious origins that defy standard human engineering. Equipping a colonist with archotech upgrades turns them into an elite combatant and worker capable of soloing multiple threats.
Sourcing and Manufacturing Cybernetic Implants
Building a bionic empire demands a steady supply of plasteel, advanced components, and components. Without a secure supply chain, your colonists will remain flesh-bound and vulnerable.
Research Priorities
To begin manufacturing your own high-tier body parts, prioritize research projects in a specific sequence:
- Research prosthetics early to unlock basic replacements for lost limbs.
- Advance to electricity and multianalyzer construction to support complex manufacturing hubs.
- Invest heavy research points into bionics once your base has stable food and defense systems.
- Target fabrication to unlock the ability to craft advanced components and plasteel items.
Material Requirements
Most advanced cybernetics require precise quantities of steel, plasteel, and silver components. Plasteel acts as the primary structural material due to its extreme durability and lightweight properties. Mining distant rock formations, trading with orbital bulk goods merchants, and deactivating mechanoids left behind by raids provide the raw materials necessary to keep your hospital stocked.
Surgical Procedures and Medical Risks
Installing cybernetic enhancements is not without risk. Even a skilled doctor can make mistakes, leading to permanent scarring, infection, or accidental death during routine procedures.
The Importance of Medical Room Quality
Surgery success rates depend heavily on the cleanliness of the room and the skill of the surgeon. Operating in a dirty makeshift hospital invites dirty-wound infections that can prove fatal on the Rim. Construct a dedicated hospital featuring sterile tiles, advanced vitals monitors, and bright lighting to maximize your surgical success rate.
Doctor Skill and Anesthesia
Assign your highest-level medical colonist to perform surgeries. If your best doctor has a low medical skill level, practice on animals or prisoners before attempting to install expensive bionics on your core colonists. Always ensure herbal medicine or industrial medicine is stocked in the hospital storage zone, as using no medicine dramatically increases the chance of surgical failure.
Managing Rejection and Pain
While standard bionics do not cause biological rejection in vanilla gameplay, the psychological trauma of losing a natural limb can trigger mental breaks. Colonists possess specific traits and mood modifiers; losing a hand and receiving a cold metal replacement can sometimes impact their social standing or mood unless balanced by other positive experiences.
Combat Applications of Body Modifications
Colony defense relies heavily on the physical capabilities of your fighters. Upgrading your frontline defenders with specialized combat hardware shifts the balance of power during major raids.
Melee Specialists
Melee combatants absorb the brunt of incoming enemy fire and engage attackers in close quarters. Equipping a bionic heart prevents heart attacks and improves blood pumping, while bionic spines ensure they absorb blunt trauma without collapsing. Power claws and bionic arms increase melee damage output, allowing your frontline fighters to cleave through heavy armor with ease.
Ranged Specialists
Ranged combatants depend on sight and manipulation to land accurate shots from a distance. Bionic eyes ensure your snipers maintain pinpoint accuracy even in low-light conditions or heavy weather. Bionic legs grant superior movement speed, allowing ranged colonists to kite slower melee enemies and maintain a safe distance from danger.
Common Mistakes to Avoid
Players often make critical errors when managing cybernetics, leading to wasted resources and dead colonists.
- Installing expensive bionics on colonists with terminal health conditions or severe chemical addictions often results in wasted materials when they inevitably succumb to withdrawal or disease.
- Ignoring the hospital's cleanliness rating leads to avoidable infections that destroy the value of newly installed implants.
- Forgetting to uninstall old prosthetics before operating means you might accidentally destroy valuable items or fail to recover basic parts for reuse on prisoners or recruits.
- Neglecting power security for fabrication benches halts your manufacturing pipeline right when you need replacements the most.
Frequently Asked Questions
Can colonists reject bionic parts?
In the unmodded version of the game, colonists do not reject standard bionics or archotech implants. However, certain total conversion modifications introduce biological rejection mechanics that require immunosuppressant drugs.
How do I get archotech body parts?
Archotech parts cannot be crafted at a workbench. You must acquire them by trading with passing orbital merchants, visiting friendly settlements, or completing high-level quests offered by allied factions.
What happens if a bionic part gets damaged in combat?
Bionic parts take damage just like natural flesh. If a bionic arm suffers enough damage, it becomes destroyed or disabled, requiring a medical operation to replace it with a fresh unit.
Can prisoners receive bionics?
Yes, you can install prosthetics or bionics on prisoners. Players often use this mechanic to replace missing limbs before recruiting valuable prisoners, or to harvest organs safely if playing a more ruthless colony style.
