Stronghold
http://www.gamespot.com/pc/strategy/...result;title;0
Stronghold Crusader
http://www.gamespot.com/pc/strategy/...result;title;3
Stronghold 2
http://www.gamespot.com/pc/strategy/...result;title;2
Stronghold Legends
http://www.gamespot.com/pc/strategy/...result;title;4