If Call of Duty and Minecraft had a baby, it would be Krunker. This browser FPS runs on anything—even a Chromebook from 2018.

These games are often not blocked by standard filters because they are hosted on different domains and run entirely in the browser without requiring a download.

Sometimes "unblocked" just means "I don't want to pay." If you are on a home network or a personal laptop, here is the real free Call of Duty experience.