As far as I'm aware Steam makes no attempt to do anything over the internet while in offline mode, and if you are suspicious that it is, then just have your firewall block the application so it can't. If you have a reason to not want it too. @ Sahkundher "Thank you for your response as well and again as I posted above I wish no offense, but why can't we hear an answer from someone official?" Why would you need to hear something that I have stated to be fact from someone official, sure if you aren't getting the correct answer from me then ofcourse you will still want it, but if I knew something 100% to be true, then you would "need" no other source of information (though 2 confirmations are better than 1), if you were a bit sceptical you might ask me to prove my information, but you would also ask the same from any 2k representitive. My point, just because I'm not an official representitive of 2K doesn't automatically dismiss everything I say to be merely "a possibility" I know you said no offense intended so I will leave my point there as you weren't really saying this to be true. As it happens I don't actually know for sure if their will be any regional restrictions (so I can't complain that you are still unsatisfied regarding your answer you want), I just shared what little information I do have, which I can basically sum up as, "Don't buy from Russia or Thailand if you don't plan on playing Civ5 in that country for the rest of your life. Because thier might be some regional restriction there," And as far as I am aware, no Regional Restriction other than this has ever existed for any other Steam game/service, i.e buying in the US would mean you can't play in the UK. Their are Regional Price differences, & Regional Content Difference's though in several cases.