RimWorld Biotech

RimWorld Biotech adds systems for raising children, modifying colonists’ genes and commanding mechanoids. You can grow your colony’s population through natural or artificial means, create xenohumans with combinations of genes, and turn a colonist into a mechanitor who controls semi-living machines.

Raise children

Colonists can have children naturally, use a surrogate mother, take in orphaned children or gestate embryos in machines. You can arrange relationships or let them develop on their own, then prepare for labor and childcare. Babies need food, a nursery for play and a comfortable crib.

As children grow, balance work and play while they learn through exploring nature, chatting on the radio, attending class, daydreaming, scribbling and watching adults work. At certain ages, you choose their traits and passions; a healthier upbringing gives you a wider selection. Growth vats provide a cheaper, faster alternative to raising children normally, producing soldiers and workers with limited abilities.

Modify genes

Create genetically modified colonists called xenohumans. Obtain exotic genes from traders, quest rewards or xenohuman prisoners, then recombine them to produce mixes of traits and build a colony of xenohumans.

New factions include hardy pig-people, poison-drinking waster pirates and unforgiving neanderthal hunters. Their cultures and tactics vary: confronting frenzied fire-breathers differs from stopping wolf escorts sent by fur-bodied riflemen. Some xenohuman cultures are friendly, while others are hostile or prefer to be left alone.

Meet the sanguophages

Sanguophages hide among humans, concealing superhuman powers while seeking blood to meet their genetic needs. Powered by superintelligent nano-machines, they are ageless and immortal, and can launch deadly spines and heal allies. You can join their cult if they deem you worthy, or force them to grant you immortality.

Command mechanoids

A colonist with a brain implant can become a mechanitor, able to psychically command semi-living machines called mechanoids. Grow them in high-tech gestator tanks and direct a range of combat and labor units.

Combat mechanoids include cheap, disposable gunners, tanky defenders, shield-projecting snipers and flame-spitters. At the colony, workers can manufacture goods, rescue and tend to colonists, build and repair structures, sow and harvest crops, haul items and perform other tasks. Expand your mechanoid swarm and upgrade your mechanitor.

You can also call down three new super-mechanoid bosses to fight. Defeating them and their escorts lets you harvest special mechanoid chips from their husks and advance your mechanoid technology.

Manage pollution

Mechanoid infrastructure produces toxic wastepacks. If left unfrozen, they deteriorate and release pollutants that poison colonists, mutate plants and animals, block sunlight and attract giant hostile insects. You can manage the waste or adapt to pollution with new gear, detoxifier organs and genetic modifications.