RimWorld version was a specific unstable build update released by Ludeon Studios in November 2022. This patch was part of the broader 1.4 content update , which introduced massive changes like gene-modding and cross-expansion integration with the Biotech DLC . Patch Highlights: Version 1.4.3548
Improved tooltips for essential precepts to clearly show growth vat speed increases.
Resolved issues with "null genes" being saved in custom xenotypes and clarified various Biotech interaction strings. Why You Might See a .zip File
Since this version's release, RimWorld has advanced significantly. The current stable version as of early 2026 is , which includes the Odyssey expansion featuring exploration-themed content like gravships and new biomes.
Added convenient build commands for swapping between standard shelves and small shelves.
Added a Xenotype editor directly to the ideoligion creation page, making it easier to integrate custom species into your colony's belief system.
RimWorld version was a specific unstable build update released by Ludeon Studios in November 2022. This patch was part of the broader 1.4 content update , which introduced massive changes like gene-modding and cross-expansion integration with the Biotech DLC . Patch Highlights: Version 1.4.3548
Improved tooltips for essential precepts to clearly show growth vat speed increases. RimWorld.v1.4.3548.zip
Resolved issues with "null genes" being saved in custom xenotypes and clarified various Biotech interaction strings. Why You Might See a .zip File RimWorld version was a specific unstable build update
Since this version's release, RimWorld has advanced significantly. The current stable version as of early 2026 is , which includes the Odyssey expansion featuring exploration-themed content like gravships and new biomes. Resolved issues with "null genes" being saved in
Added convenient build commands for swapping between standard shelves and small shelves.
Added a Xenotype editor directly to the ideoligion creation page, making it easier to integrate custom species into your colony's belief system.
