Dark Legions happened in 1994.
Dark Legions was created in 1994-04.
Shinobi Legions happened in 1995.
Galaga Legions happened in 360.
Legions of Death happened in 1987.
Galaga Legions DX happened in 2011.
Dark Adventure happened in 1987.
The Dark Spire happened in 2008.
Dark Souls happened in 360.
Dark Cloud happened in 2000.
Dark Chronicle happened in 2002.
Dark Colony happened in 1997.
Dark Castle happened in 1986.