Ubisoft says it's currently discussing the issue with Valve; games currently unavailable on UK Steam store; no reason given or estimated time until games will reappear.
Gamespot Recent Updates [News], GameSpot
Thu, 11/22/2012 - 8:12am
Ubisoft says it's currently discussing the issue with Valve; games currently unavailable on UK Steam store; no reason given or estimated time until games will reappear.