“To be fair, with the servers shutdown, the game would have been impossible to play anyways. This isn’t simply because it’s an online-only game. In fact, Order of War: Challenge has 18 single-player missions as well. But due to always-online DRM, even the single-player portion of the game requires the servers to be up and running.”
“Update: It appears that contrary to what I first believed, the single-player portion of the game—Order of War without the “Challenge”—is still available on Steam, and only the multi-player content has been removed.”
Not exactly Valve’s fault
“To be fair, with the servers shutdown, the game would have been impossible to play anyways. This isn’t simply because it’s an online-only game. In fact, Order of War: Challenge has 18 single-player missions as well. But due to always-online DRM, even the single-player portion of the game requires the servers to be up and running.”
Also, at the end of the article:
“Update: It appears that contrary to what I first believed, the single-player portion of the game—Order of War without the “Challenge”—is still available on Steam, and only the multi-player content has been removed.”