In 2015, Halo Online was announced for the PC, and then it pretty much disappeared. Here's the real reason why Halo Online was canceled.
The Real Reason Halo Online Was Canceled
When "Halo Online" was announced as a free-to-play, PC-only experience, fans got excited — until the game abruptly disappeared without much explanation. Here is the real reason that "Halo Online" was canceled.