Rimworld.v1.4.3548.zip May 2026

This particular build focused on refining new features introduced in the 1.4 cycle:

Added a Xenotype editor directly to the ideoligion creation page, making it easier to integrate custom species into your colony's belief system. RimWorld.v1.4.3548.zip

Added convenient build commands for swapping between standard shelves and small shelves. This particular build focused on refining new features

Resolved issues with "null genes" being saved in custom xenotypes and clarified various Biotech interaction strings. Why You Might See a .zip File RimWorld.v1.4.3548.zip

Are you trying to that requires this exact build? Odyssey (DLC) - RimWorld Wiki

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) .