The Walking Dead™: Survival Instinct restrictions...

http://steamdb.info/sub/26399/
Neither a AllowPurchaseFromRestrictedCountries, a onlyallowrunincountries nor a AllowCrossRegionTradingAndGifting tag.
Should be fine. :)

I sold a copy to a Brazilian earlier today, and haven't heard anything from them about it being locked or not working.

ow nvm, its not avilalbe on br and JP.

if you bought an non-ru copy your fine

I traded a copy to a friend in Japan, no problems mentioned. Should be fine.

Friends are enjoying...(really?) the game here in Korea.

I think it should be fine to activate the game then... thanks to everyone who helped me! 8^D

EDIT: I will leave the thread opened for more comments. After playing the game, and checking that this game works in brazil, I will leave a comment here and close the thread. (this may take some days)