RimWorld version 1.4.3507, an October 2022 unstable build, initiated testing for the 1.4 update, introducing a major shelf overhaul, painting mechanics, and new defensive structures like the Rocket Swarm Launcher. This update focused on base-game improvements, including improved performance, the rot stink/lung rot mechanics, and refined mod management. Further details can be found on the Ludeon Forums . Steamワークショップ::Geyser Deconstruct patch