: This version is part of the 1.4 "Biotech" era. It includes the base game and is compatible with the Royalty , Ideology , and Biotech DLCs.
: RimWorld is "DRM-free," meaning it generally does not require a formal installation process. You can simply extract the folder to a location like C:\Games\RimWorld and run the executable. Common Troubleshooting RimWorld.v1.4.3557.rar
This file name refers to a compressed archive of , a popular sci-fi colony simulation game developed by Ludeon Studios. Specifically, version 1.4.3557 was an update released in late 2022 that introduced several technical fixes and performance improvements following the release of the Biotech expansion. : This version is part of the 1
: You will need a utility like 7-Zip or WinRAR to open the archive. You can simply extract the folder to a
: Typically, a .rar file of RimWorld contains the game executable ( RimWorldWin64.exe ), the Data folder (core game files), and a Mods folder. Safety and Installation
: If you are installing mods, ensure they are tagged for version 1.4 . While version 1.5 is the current major release, many players maintain 1.4 installations to keep specific mod lists stable.
If you have downloaded this file or found it on your system, here is what you should know: What is in this file?