I have purchased a Humble Bundle package of Steam games which includes some games (Arma2, Arma2:Operation Arrowhead and Arma2:DayZ) that me and my friends already own or not interested.
You need to login to your Steam account to redeem the games from humble bundle.
If somebody redeem the games, please let as know, so nobody else try it
Ugh, I have problem. I’ve activated Arma 2 correctly (even have it installed), but when I try to link DayZ I get on humble page: You need to purchase the base product first. But I have Arma2!
Am, have you redeemed Operation Arrowhead too, or that was redeemed by somebody else?
DayZ need both. Arma 2 and Arma 2: Operation Arrowhead I believe, and need to run Arma 2 and Operation Arrowhead at least once before you can play DayZ.