If you found a file named on a third-party site or forum:
For the most stable experience, ensure your game is updated to the latest version (currently as of early 2026), which includes major additions like Endless Mode and Console Edition parity fixes.
The only official way to update PC Building Simulator 2 is through the Epic Games Store , which handles updates automatically. PCBS2 UPDATE 1.01.09.rar
Are you trying to or looking for new parts added in a recent update?
Addressed bugs where the tablet wouldn't close properly or PCs would visually "grow" when picked up from a workbench. If you found a file named on a
The development team at Spiral House released several hotfixes (v1.00.14 through v1.00.22) shortly after the game's release to address critical stability issues:
Files ending in .rar from unofficial sources often contain malware or are used for pirated versions of the game. It is highly recommended to use the official update news feed to verify version numbers and patch notes. Addressed bugs where the tablet wouldn't close properly
While there is no single official article titled "PCBS2 UPDATE 1.01.09.rar," this filename likely refers to a compressed update file for . If you are looking for the official changes around that version, they correspond to the early post-launch patches from October 2022. PC Building Simulator 2 Early Patch Highlights