Fortress of the Mutant Waffles happened in 1983.
Fortress of the Mutant Waffles was created in 1983.
Mutant Future happened in 2008.
Metal Mutant happened in 1991.
Attack of the Mutant happened in 1997.
Dwarf Fortress happened in 2006.
Fortress Forever happened in 2007.
Air Fortress happened in 1989.
Team Fortress happened in 1996.
Attack of the Mutant Penguins happened in 1995.
Mutant League Football happened in 1993.
Revenge of the Mutant Camels happened in 1984.
Mutant Storm Reloaded happened in 360.