High Quality Content by WIKIPEDIA articles! Stronghold 3 is a 2011 real-time strategy computer game developed by Firefly Studios and published by SouthPeak Games. The game is the seventh in the series after several spin-offs, including a remake and an MMORTS. It is the sequel to Stronghold, released in 2001, and Stronghold 2 released in 2005. Unlike previous games in the series which were published by Take-Two Interactive, the game has been published by SouthPeak Games, the new parent company of Gamecock Media Group, publisher of Stronghold Crusader Extreme.