If you have a Steam account that owned CS:GO before the CS2 update, you can use depot_download commands.
Several archive projects (such as CS:GO Legacy ) distribute the extracted .exe and .vpk files. This is the easiest method for LAN parties. Simply download, verify the SHA-1 hash matches v1.34.7.2 , and launch csgo.exe . Counter-Strike Global Offensive v1.34.7.2