[dkersten]

Ah, you are correct about Candy Crush. After being promoted by your comment to investigate further, I see that King seems to only ever have released one game using the engine: Blossom Blast Saga in 2016, at least according to the showcase[1].

It seems that Candy Crush predates the engine by a few years and that the engine was originally created as a hobby project by one of the King employees, although it’s seen commercial use on mobile by a number of studios and has received backing from King and others over the years. King are not currently listed as a backer of the Defold Foundation, but one of the board members is the “director of engines” at King.

[1] https://defold.com/showcase/