From Steam:
Far Cry 4 - Gold Edition
The Far Cry 4 Gold Edition includes the
Limited Edition & The season pass. It is designed for any fans and new comers who want the most complete game experience on Far Cry 4
There is also a pre-purchase offer as well:
Pre-purchase Offer
Pre-purchase now to receive Hurk’s Redemption Missions consisting of 60 minutes of gameplay including, 3 extra missions and 1 exclusive weapon.
Three action-packed single-player missions featuring your pal Hurk:
Mission 1: Fight dangerous enemies in the ice caves of snow-capped mountains to retrieve a rare artifact.
Mission 2: Fight waves of enemies while riding an unusual vehicle with Hurk by your side.
Mission 3: In this epic bro-tastic conclusion, chase...