Good news, the PC version of R.U.S.E. will not use Ubisoft’s 24/7 always online DRM, instead it will use Steamworks.
Aymeric Evennou, Ubisoft senior community developer, stated on the official R.U.S.E. forums: “When R.U.S.E. is released in September, it will benefit from Valve’s Steamworks API to offer the best community experience to players. Consequently, a Steam account and Internet connection will be required to activate the game, as per Steam policy. For this reason, R.U.S.E. will not use the Ubisoft protection. Single player can be played offline.”
Hopefully Ubisoft will patch all their old games to no longer use their DRM.