Firefly Studios has announced Stronghold 3: Gold Edition will be released on May 25 for PC and Mac. The release comes with the new Blackstaff single-player campaign and all 12 historical sieges, previously only available through special editions of the game as well as the three core campaigns, four multiplayer modes including the new Coronation mode, and a free-build sandbox mode. Those who already own Stronghold 3 or purchase it before May 25 will have their copy automatically upgraded to the Gold Edition through Steam. Those who purchase the standard edition after this date will have the option to purchase the Blackstaff Campaign as downloadable content. Shots of the new campaign are posted below.