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.
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: PCBS2 UPDATE 1.01.09.rar
If you found a file named on a third-party site or forum: Files ending in