The Fortress Series was created in 1995.
Tank Knights Fortress, also known as Iron Leaguer, was created in Japan in 1993 as an anime television series. It later aired in Western countries in the early 2000s.
Yerevan Fortress was created in 1583.
Miracle Fortress was created in 2005.
Przemyśl Fortress was created in 1855.
Kaunas Fortress was created in 1915.
Iaal Fortress was created in 1816.
Shusha fortress was created in 1751.
Sky Fortress was created in 2010.
Kruševac Fortress was created in 1381.
Fortress of Mimoyecques was created in 1943.
Ajyad Fortress was created in 1781.
Kiev Fortress was created in 1927.