Like Cancelled, Defunct means the service is no longer functioning and has been shut down.
Popular Defunct Digital Stores include:
Xbox Games Store, which discontinued in 2017.
Popular Game Developers/Publishers include:
Midway Games, The Developer of the Mortal Kombat (series), Pac Man, Ms Pac Man, Space Invaders; Just to name a few, shutdown in 2010, due to bankruptcy.
Sierra Entertainment, The Developer of the Leisure Suit Larry (series), Spyro, and Publisher of popular FPS Counter-Strike, shutdown in 2008, due to being sold to fellow Publisher Activision.
Much Loved Series and Developers/Publishers all die in the end, due to funding difficulties, or going bankrupt, or being sold.