You may have heard a story about the origins of Final Fantasy. It typically goes that the game developer (then called Square) was on the brink of bankruptcy, so it put all its hopes in one final game, which is why the long-running series is called Final Fantasy. It turns out, that story is totally fake. Square actually wanted to call the game Fighting Fantasy, but had to pivot at the last minute due to a trademark issue.
Fast forward 37 years and Final Fantasy is still going strong, with its developer (now Square Enix) currently working on two major games in the series: a third entry in its acclaimed remake of Final Fantasy 7, and the next installment in the mainline franchise: Final Fantasy 17.
