You did not change the global.cfg language to Czech (16). Alternatively, download a "Translated IBIS" patch if available.
: Many players have shared their experiences driving through Kojetice on platforms like YouTube, featuring popular Czech buses like the Irisbus Crossway LE Solaris Urbino omsi 2 kojetice download
The main development hub is the OMSI.cz Forum, which contains download links and patch notes for version 2.2 [3, 12]. You did not change the global