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.
Players sometimes roll back to specific builds like 1.4.3548 if a critical mod hasn't been updated for later versions like 1.5 (Anomaly) or 1.6 (Odyssey) .
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
Are you trying to that requires this exact build? Odyssey (DLC) - RimWorld Wiki Improved tooltips for essential precepts to clearly show
Added a Xenotype editor directly to the ideoligion creation page, making it easier to integrate custom species into your colony's belief system.
Added convenient build commands for swapping between standard shelves and small shelves. Odyssey (DLC) - RimWorld Wiki Added a Xenotype
Files named RimWorld.v1.4.3548.zip are typically found on community forums or third-party sites. In the RimWorld community, these are often used for: