Originally Posted by NarcissistZero
It's against the Steam ToS to buy games from cheaper regions and activate them in the West. People who did that with Modern Warfare 2 had their games taken away.
If it's purchased through Steam it's against the ToS, also if's it's one of those dodgey sites that just sells the key. However if it's retail boxed even if it's a game that uses Steamworks, it's fine. Also if the game if gifted it's legal. There is no way Valve can stop people handing out gifts to loved ones and I love |MagNuS|.