: Often ranked as the most essential DLC, it introduces children and reproduction, genetic engineering (Xenotypes), and the ability to control a swarm of mechanoids as a "Mechanitor".
If you are a Steam user, you can still access this specific version by right-clicking RimWorld in your library, going to , and selecting "version-1.4.3901" from the dropdown menu. The "All DLCs" Experience rimworld 143901 all dlcs
Version 1.4.3901 was the final stable build of the 1.4 update before the game transitioned to version 1.5 and the release of the DLC. For many players, this build is a "Goldilocks" zone—it includes the massive overhauls from Biotech , Ideology , and Royalty , but remains compatible with a vast library of mods that haven't yet made the jump to 1.5. : Often ranked as the most essential DLC,
While version 1.5 added great features like and hidden power conduits , some players prefer 1.4.3901 for specific reasons: For many players, this build is a "Goldilocks"