Colonists can now have children naturally or through technology like growth vats. Raising them involves building nurseries and providing an education to mold their future traits.

A new path allows a colonist to become a mechanitor, capable of controlling a personal swarm of mechanoids. This comes at a cost: Pollution , a new environmental mechanic that poisons the land and triggers insectoid attacks. Major Quality of Life Overhauls

RimWorld - Biotech expansion and update 1.4 available now! - Steam News. RIMWORLD 1.4 || All the new content summarized in 6 minutes