Because this is a proprietary game file, it isn't hosted on official storefronts like Steam. To find it, you should look toward the dedicated modding community:
When setting up emulators for obscure consoles (e.g., PlayStation 2, Sega Dreamcast), some BIOS or firmware dumps use .arc containers. The “2” might denote a revision required for a specific ROM hack. common.arc 2 download
A: Check the file size and creation date against known patches. If it is less than 1 KB, it is likely a placeholder or a malicious script. Because this is a proprietary game file, it
If you know what you are doing and specifically need to extract or repack a common.arc file for a game: common.arc 2 download
A: Highly suspicious. Use a sandbox or avoid entirely. Search for an official source first.