Disney announced plans Thursday to shut down the "Marvel: Avengers Alliance" online game series at the end of the month.
"Marvel: Avengers Alliance" originally launched on Facebook in 2012 alongside the first "Avengers" film.
The popular turn-based role-playing game spawned a sequel and versions for mobile devices. The games featured Marvel superheroes such as Iron Man, Black Widow, Cyclops, Spider-Man and She-Hulk.
Disney said in a statement it was ending the game because it is shifting its "development focus towards other online and mobile play experiences."
The games will go offline Sept. 30.