The actual game files (ISO, installer, or executable) are available for free download on the Internet Archive due to copyright. Activision still sells Black Ops 1 on Steam, Xbox (backward compatible), and PlayStation stores.
Recently, many fans have been turning to the to find this classic. What Can You Find on the Internet Archive? call of duty black ops 1 internet archive
Collectors can find high-quality deluxe edition soundtracks and archival gameplay footage, such as full level recordings of the Vietnam mission. Technical & Legal Considerations The actual game files (ISO, installer, or executable)