: This is the most popular and safest way to play Black Ops 2 on PC today. It provides a custom launcher that fixes security vulnerabilities found in the original Steam version and includes dedicated servers for multiplayer and zombies. You can find more information on the Plutonium Project Website .

Downloading and attempting to extract password-protected game archives from unofficial sources carries significant security risks: How to install Black Ops 2 for free (skidrow)

If you are having trouble with a pirated version or want to play safely, consider these community-vetted options:

Play safe. Play legit. And enjoy the masterpiece that is Call of Duty: Black Ops 2 —the right way.

If you have downloaded a version of that is protected by a password, you should exercise extreme caution.