When I purchased this game, I had researched for months to decide precisely what game I wanted. I chose Assassin's Creed Brotherhood. I even bought a new computer so I had a machine with the guts to run it properly. I played the game for a month offline ( without any intention of playing it online EVER ), then a couple of days ago, Uplay updated and wanted a CD key. Not being a kid, I kept everything that came with the game. A CD key was not among that. Now I'm informed that I cannot even play the game ON MY OWN COMPUTER without it. Want to know how to anger a VETERAN? Tell him he can't do something. Being a disabled VET, I'm not exactly made of money. And now they'll probably tell me I have to purchase ANOTHER CD key, when I never got one in the first place! I'm not a kid, I'm a freaking grandfather and I know how to get things done. Just a warning to those who are considering ANY of these games. As long as they insist on using this intrusive, ABUSIVE software to "manage" your gameplay, you aren't going to be happy. I'd let them know about it as I just have.
In a meantime since u do not intend to play ACB online u can just make a shortcut to ACBSP.exe, then open shortcuts properties and in "object" field add (after space) -playoffline so it will look like this
This will totally bypass Uplay, but still consider contacting a store you purchased a game from.